Best Energy Efficient Water Heater

Our Top 3 Picks

Today is the top-rated Best Energy Efficient Water Heater and we scoured online reviews for it. Clicking on the links will bring you to the products. All I had to do was rank them according to their popularity. We have put together a list of everything you need to know. Only the most successful ones have been chosen to do research in the future.

# Preview Product Rating
1 EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating... No ratings yet
2 Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water Heater Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water Heater No ratings yet
3 Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray No ratings yet
4 Titan N-100 Electronic Digital Tankless Water Heater By Niagara Industries Inc. 29 Years in Business Titan N-100 Electronic Digital Tankless Water Heater By Niagara Industries Inc. 29 Years in Business
5 Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, White Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self... No ratings yet
6 Energy Efficient Water Heating Systems e-Book Energy Efficient Water Heating Systems e-Book No ratings yet
7 DIY Solar Projects - Updated Edition: Small Projects to Whole-home Systems: Tap Into the Sun DIY Solar Projects - Updated Edition: Small Projects to Whole-home Systems: Tap Into the Sun No ratings yet
8 Rinnai RLX94iN Natural Gas Tankless Hot Water Heater, 9.8 GPM Rinnai RLX94iN Natural Gas Tankless Hot Water Heater, 9.8 GPM No ratings yet
9 Portable Propane Tankless Water Heater, 1.32GPM/5Litre Capacity, 6-IN-1 Multiple Protection, 7 More Usage Scenarios, Low Pressure Startup, Black Portable Propane Tankless Water Heater, 1.32GPM/5Litre Capacity, 6-IN-1 Multiple Protection, 7 More... No ratings yet
10 Four Step Energy Makeover for a More Energy Efficient Home Four Step Energy Makeover for a More Energy Efficient Home No ratings yet
11 Lewis N. Portable Immersion Water Heater + Electric Kettle Alternative for Coffee, Tea + Hot Chocolate, Camping, Travel + Office w/Travel Adapter, White, 120/240v Lewis N. Portable Immersion Water Heater + Electric Kettle Alternative for Coffee, Tea + Hot... No ratings yet
12 Pentair EC462025 MasterTemp 125 125,000 BTU Compact Energy Efficient Swimming Pool and Spa Natural Gas Heater for Small Pools Up to 15,000 Gallons Pentair EC462025 MasterTemp 125 125,000 BTU Compact Energy Efficient Swimming Pool and Spa Natural... No ratings yet
13 Rinnai RL75eP Propane Gas Tankless Hot Water Heater, 7.5 GPM Rinnai RL75eP Propane Gas Tankless Hot Water Heater, 7.5 GPM No ratings yet
14 Rinnai RUCS75iN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Indoor Installation Rinnai RUCS75iN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Indoor Installation No ratings yet
15 Rheem 18kW 240V Tankless Electric Water Heater Rheem 18kW 240V Tankless Electric Water Heater No ratings yet
16 Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot... No ratings yet
17 Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation No ratings yet
18 Rinnai RL94eN Natural Gas Tankless Hot Water Heater, 9.8 GPM Rinnai RL94eN Natural Gas Tankless Hot Water Heater, 9.8 GPM No ratings yet
19 Pro Breeze Space Heater – 1500W Electric Heater with 3 Operating Modes and Adjustable Thermostat - Room Heater for Bedroom, Home, Office and Under Desk - White Pro Breeze Space Heater – 1500W Electric Heater with 3 Operating Modes and Adjustable Thermostat -... No ratings yet
20 Rinnai V65eP Propane Tankless Hot Water Heater, 6.5 GPM Rinnai V65eP Propane Tankless Hot Water Heater, 6.5 GPM No ratings yet

It took us a long time to research the most relevant Energy Efficient Water Heater. After reading all of the resources, here are some of the top-rated products that you can learn more about, as well as where they are heading with their newest products in modern times. We were able to find the most reliable models on the market.

Best Energy Efficient Water Heater

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

$299.00
$223.06
 in stock
23 new from $220.00
2 used from $182.49
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
  • EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution

SZELAM 25W Smart Mini Aquarium Heater, Betta Fish Tank Heater Thermostat Warmer Submersible Anti-Explosion/Energy-efficient Water Temp Controller

$18.95  in stock
1 used from $10.36
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Smart Control- Adopted intelligent circuit board, with a precise temperature sensing probe and constant temperature heating system. No thermometer required, no more operations: Unlike other conventional heaters, need you to manually adjust the temperature. Our Smart Aquarium Heater just plug the power cable then it will work. It works in intermittent operation mode and will automatically turn on/off to achieve the setting temperature constantly and stably, Energy-efficient.
  • Easier to Use- SZELAM Mini Heater different from a manually adjusted heater. Our heater automatic temperature regulate on 73ºF-82ºF(25℃-28℃) , no need to set. Prevent electric shock and burns. Keep you and your family safe. Position it near a strong water flow for whole aquarium are in the same temperature. The outlet of filter is ideal.
  • High Quality- Made by heat resistant ABS housing, sandy quartz filler and MCH Alumina ceramic heating system, anti explosion & cracking, it is scald-preventing for your pets and safe operation for you, safer and more stable to use.
  • Mini Sized- Fully submersible compact betta fish heater Gift with 2PCS Aquarium Decor Artificial Plant. Specific perfect for mini aquarium under 5 gal/20L. SZELAM Mini Heater provide a constant warm for your pet fish to stay healthy, suitable both for fresh and salt water.
  • Quality Assurance- This product have certificated by CE, ROHS, FCC certifications. We provide 1 year quality assurance for this product, we will provide replacement items for any product problems within 90 days after your purchase it.

Titan N-100 Electronic Digital Tankless Water Heater By Niagara Industries Inc. 29 Years in Business

$279.99
$243.00
 in stock
4 new from $243.00
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Endless Hot Water
  • Space Savings
  • Energy Saving, UL compliant & ETL Lead Free Certified
  • 29 years in the business
  • Patented Design Assembly

Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water Heater

$169.00  in stock
10 new from $169.00
3 used from $126.75
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States
  • Stores up to 2.6 Gallons of water to supply hot water. Easy installation requires appliance line cord included plug. Requires no venting, unit can be installed directly at the point-of-use
  • 12 A

Portable Propane Tankless Water Heater, 1.32GPM/5Litre Capacity, 6-IN-1 Multiple Protection, 7 More Usage Scenarios, Low Pressure Startup, Black

$188.77
$157.99
 in stock
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • 【7 MORE USAGE SCENARIOS】Perfect heater shower for before and after swimming in your pool or lake. Your dog will love the spa-like experience. No more cold outdoor baths with the hose - you can use the detachable shower head to easily wash your pets with warm water they will appreciate. Perfect for DIY Outdoor Shower, RV Shower, Camping Shower, Outdoor Pet Shower, RV/SUV/MPV, Beach Bathing Boxes, Campsites, Hunting Cabins, Boats, Kid Pools, or just around your house
  • 【FULLY EQUIPPED】No need to look around for accessories, this tankless water heater comes with CSA approval Gas Regulator, high pressure Shower Head with 59in(1.5m) extended Long Stainless Steel Hose and Shower Holder, Dust Cover, Handle(Fitted already), Wrenches, US Universal Gas Connector, Garden Hose Connectors, Teflon Tape, and Fitting Kits
  • 【EASY TO INSTALL LOW PRESSURE STARTUP】Just need 2.5PSI of water pressure, No electricity needed, the ignition is with 2 D cell batteries(not included). Connect gas supply water supply, now you and your lovely family lovely pet can enjoy endless hot showers anywhere anytime
  • 【6-IN-1 MULTIFUNCTIONAL SAFETY PROTECTION】Passed UL-307B Safety Test and FDA Food Contact Article Test, ensure home safety, Oxygen depletion safety shut-off protection, Over-heating protection, Anti-freezing protection, Flameout protection, Thermal protection, Mini and open design to prevent excessive surface temperature
  • 【LOVE ENDLESS HOT SHOWERS】Other tankless water heater on the market have limited support and poor quality. This outdoor tankless water heater is the real deal! And if you have any questions, concerns or issues, our friendly and helpful support team can be reached at phone call and mail.

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted

$181.18  in stock
6 new from $181.18
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 10.75 D Inches
  • LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
  • INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
  • FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
  • EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water

Portable Tankless Water Heater Propane Shower, 1.85GPM/7Litre Capacity, 6-IN-1 Multiple Protection, 7 More Usage Scenarios, Low Pressure Startup, Black

$167.99  in stock
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • 【7 MORE USAGE SCENARIOS】Perfect heater shower for before and after swimming in your pool or lake. Your dog will love the spa-like experience. No more cold outdoor baths with the hose - you can use the detachable shower head to easily wash your pets with warm water they will appreciate. Perfect for Outdoor Shower, Portable Hot Water Sink, Portable Pet Shower, RV/SUV/MPV, Beach Bathing Boxes, Campsites, Hunting Cabins, Boats, Kid Pools, or just around your house.
  • 【FULLY EQUIPPED】No need to look around for accessories, this tankless water heater comes with CSA approval Gas Regulator, high pressure Shower Head with 59in(1.5m) extended Long Stainless Steel Hose and Shower Holder, Wrenches, US Universal Gas Connector(Fixed already), Garden Hose Connectors, Teflon Tape, and Fixing Kits
  • 【EASY TO INSTALL LOW PRESSURE STARTUP】Just need 3.0PSI of water pressure, No electricity needed, the ignition is with 2 pieces D cell batteries(not included). Connect gas supply water supply, now you and your lovely family lovely pet can enjoy endless hot water anywhere anytime.
  • 【6-IN-1 MULTIPLE PROTECTION】Passed UL-307B Safety Test and FDA Food Contact Article Test, ensure home safety, Oxygen depletion safety shut-off protection, Over-heating protection, Anti-freezing protection, Flameout protection, Thermal protection, Strong wind protection device and it can withstand wind speeds of up to 3 meters per second outdoors.
  • 【LOVE ENDLESS HOT WATER OR YOUR MONEY BACK】Other tankless water heater on the market have limited support and poor quality. This outdoor tankless water heater is the real deal! And if you have any questions, concerns or issues, our friendly and helpful support team can be reached at mail and phone call.

Rheem 18kW 240V Tankless Electric Water Heater

$425.52  in stock
10 new from $423.19
2 used from $317.39
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Simple installation – bottom 3/4 inch NPT water connections
  • Threaded for easy replacement, simple installation, digital temperature display

Stiebel Eltron Tankless Water Heater – Tempra 24 Plus – Electric, On Demand Hot Water, Eco, White, 20.2

$699.00  in stock
11 new from $696.00
2 used from $497.65
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • CONTINUOUS FLOW – Advanced Flow Control patented technology invented by Stiebel Eltron, automatically maintains water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity. Hot showers will never be interrupted again
  • SPACE & ENERGY SAVER – Its small, sleek white design saves space yet still provides endless hot water for your whole house, and no venting is required. Eco friendly unit saves energy with auto-modulation and the ability to electronically control water flow. Savings monitor even shows how much you save on energy costs
  • EASY OPERATION – Electronic switch activates the hot water heater and it’s noise free while in use. Has a digital temperature display and preset temperature and memory buttons, while the interior solid copper heating system does all the power work
  • TEMPRA 24 PLUS – This specific model is 24kW, 240V, requires a min recommended electric service of 150 A, and offers an output water temperature of 68° to 140°F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels
  • WARRANTIES INCLUDED – Stiebel Eltron’s top-rated electric tankless water heaters perform with the highest standards for comfort and reliability. Our 7-Year Leakage and 3-Year Parts Warranties are included with purchase

Solar Water Heating--Revised & Expanded Edition: A Comprehensive Guide to Solar Water and Space Heating Systems (Mother Earth News Wiser Living Series)

$29.99
$24.49
 in stock
9 new from $16.99
29 used from $2.46
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

Part Number9780865716681
Model9780865716681
EditionSecond
LanguageEnglish
Number Of Pages256
Publication Date2010-07-01T00:00:01Z

Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, White

$599.00
$502.02
 in stock
15 new from $350.00
3 used from $409.12
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Endless on-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 17 x 17 x 3.75 inches 
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used. Save up to 50% in water heating costs according to the Department of Energy
  • EcoSmart ECO 27 Sizing; Refer to the sizing map. Requires 3x40 AMP Double Pole Breaker, 27-kilowatt tankless electric water heater ideal for providing hot water for whole home applications; provides between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
  • Warranty and Certifications; Limited Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed

SunGrow Halfmoon Betta Heater, 10 Watts, for Small Tanks, Fully Submersible Aquarium Heater, Automatically Reaches Preset Temperature, Energy-Efficient Heating Module, Suction Cups Included

$14.95  in stock
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Tetras Thrive When Right Temperature Is Provided --- Neon tetras, in their native Amazon habitat, live in a temperature range between 70°F to 81°F. This ensures their optimal comfort and metabolic efficiency. Any temperature below 70°F will cause your tetras to enter a state of minimal activity and they will be stressed and miserable. Make sure they are at their optimal health and performance with this heater.
  • Automatically Reaches The Preset Temperature --- The smart SunGrow heater for freshwater fish has a built-in electronic thermostat to automatically maintain water around 75°F which is ideal for most tropical fish. It saves you from the trouble of constantly keeping a check on the temperature of your tank. It will automatically shut down when it reaches the desired temperature, no manual adjustment is needed.
  • Fully Submersible Water Heater --- This 10-watt aquarium heater supports 1.5 gallons (5 liters) fish tank. Its exterior is designed tougher than glass and the sealed polymer can be submerged into your tank. The heating element is surrounded by thick plastic to ensure the protection of your fish.
  • Creates The Ideal Conditions For Flora And Fauna — Neon tetras from the character family are basically tropical freshwater fish. They need warmer water to live in. This heater will create the ideal conditions for them. The warm water will keep them calm and happy and make their metabolic process efficient. A few preconditions are required to allow it to run with maximum efficiency. The heater must be completely submerged in the water and the indoor temperature should be around 62-75°Fahrenheit.
  • Suction Cups Included For Easy Installation ---- Easily install the SunGrow Heater vertically or horizontally by using the built-in suction cups to attach to your tank. The best location to place the heater is in the stream of a powerhead or near the water flow, such as the outlet (or inlet) from the filter. This way the heat is evenly distributed throughout your tank.

Lewis N. Portable Immersion Water Heater + Electric Kettle Alternative for Coffee, Tea + Hot Chocolate, Camping, Travel + Office w/Travel Adapter, White, 120/240v

$15.99  in stock
2 new from $15.99
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • HEATS FAST + SIMPLE TO USE: You’ll have warm water in seconds, boiling water in just minutes. Fill your container, place the immersion heater in the liquid, then turn on the immersion heater. It’s that simple.
  • MAXIMUM SAFETY: Durable burn guard protects your coffee mug, cups, and bowls ensuring the coils never touch the sides of your dishes or containers. Safely heat coffee, tea, soup, hot chocolate, and more.
  • TRAVEL ADAPTER: Powered with a dual voltage system, (120 V for North America, and 240 V for Europe and other regions), and includes a European adapter and travel pouch; perfect for all your domestic and international travel needs
  • VERSATILE: Perfect coffee and tea heater at the office, at home, or while you travel. Wonderful addition to your camping accessories. Compact, lightweight, and portable. No need for a bulky electric kettle
  • PERFECT GIFT: Hunter, outdoorsman, traveler, coffee or tea lover, Christmas, birthday, house warming gift, or for the person who already has everything! Keep at home, at the office, in the camper, or in your suitcase

Electric Hot Water Heater 110-120V Small Compact Tank Storage,Rv Tr 2.5-3.0 Gallon Trailer , 1.5KW Kitchen Instant Under Sink Counter Cupboard, RV 1 PCs 16” Long 1/2”FIP Stainless Steel Water Hose

$125.98  in stock
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • 【SAFE DURABLE & LONGEVITY】304 Made of stainless steel and never rust,Anti-leakage plug,Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant,This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV.
  • 【SMART INVERTER FOR ENERGY SAVING】Digital Display,Automatic heat preservation and storage of hot water, 3.0 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%,Maximum temperature167℉,The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature.
  • 【EASY TO USE】storage tank electric water heater with easy-to-operate knob temperature adjustment design,Easy to control warmth.Vent valve, Tee pipeline, pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories.
  • 【FAST RECOVERY RATE】Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time,8-15 minutes to heat to your desired temperature).
  • 【COMPACT DESIGN】Can be shelf, wall or floor mounted (Water inlet and outlet upward); Dimensions: 18.0''L x12.6''W x10.2''H; 8.86lbs; 1/2″NPT NPT. 1.5 kW, 110-120 volts. One-year warranty and 24H customer service support, feel free to contact us.

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted

$277.26  in stock
3 new from $277.26
2 used from $192.93
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • CONVENIENT HOT WATER HEATER: 7 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 17.5 W x 17.5 H x 14.5 D Inches
  • INSTALLED VERTICALLY OR HORIZONTALLY: This larger model can be mounted vertically (5.1 gal. of water supply) or horizontally (7 gal. of water supply)- vertical orientation is installed with the cold and hot lines on top of the unit
  • RELIABLE WATER SOURCE: Easily hard-wire the 7-gallon model to provide the on-demand reliable water source your home or office needs
  • IMPORTANT INFORMATION: Heating capacity of 1440 watts and a temperature range of 65-145°F max. Operating pressure-150 psi. Water fittings-3/4 inch Male NPT. Electrical requirements (Amp 12A/Volts 120)
  • EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included for vertical orientation only); simply tap into the cold water line and install the water heater directly at the sink to provide hot water

Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY

$287.51  in stock
7 new from $287.50
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM

Pro Breeze Space Heater – 1500W Electric Heater with 3 Operating Modes and Adjustable Thermostat - Room Heater for Bedroom, Home, Office and Under Desk - White

$29.99  in stock
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Super Fast Warming: This electric heater is engineered with advanced ceramic heating elements which provide faster and more energy efficient heating than a traditional electric space heater. Small and powerful this is the perfect room heater for bedroom, office and under desk use.
  • Powerful Heating: This small space heater features 750W (Low) and 1500W (High) power modes as well as a gentle fan only mode. Reduce your energy bills by using this energy efficient space heater to heat individual rooms rather than expensively heating your entire home.
  • Adjustable Thermostat: This portable heater with thermostat features an easy to use and fully adjustable thermostat control which monitors the surrounding air temperature for optimal heating efficiency.
  • Advanced Safety Features: Built in overheat protection and an enhanced anti-tip over switch ensures the mini heater instantly switches off in any unsafe situation, giving you complete peace of mind.
  • Ultra Portable: The lightweight and compact design allows this space heater for bedroom to be transported to wherever you needed it most, making it the perfect space heater for office and for use in homes, garages, dorms, and offices. DIMENSIONS: 6.5” x 5” x 9” 750W (Low) 1500W (High). 120V, 60Hz.

Rinnai RL94eP Propane Gas Tankless Hot Water Heater, 9.8 GPM

$1,525.61  in stock
5 new from $1,525.61
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance 9.8 GPM hot water flow rate for a powerful, constant stream
  • Instant Heating: Circ-Logic technology enables recirculation patterns that coincide with your typical habits; Wi-Fi monitoring creates hot water on demand
  • Guaranteed to Last: 12-, 5-, and 1-year residential and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, parts, and labor respectively

Pentair EC462025 MasterTemp 125 125,000 BTU Compact Energy Efficient Swimming Pool and Spa Natural Gas Heater for Small Pools Up to 15,000 Gallons

$2,013.01
$1,869.00
 in stock
3 new from $1,669.43
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • GREAT FOR SMALLER POOLS: Natural gas heater boasts 125,000 BTUs, designed for smaller bodies of water up to 15,000 gallons
  • COMPACT AND EFFICIENT: Compact design with 82-percent efficiency as compared to larger pool heaters; Quiet operation makes sure not to impose on leisure pool time
  • THOUGHTFUL, USER-FRIENDLY DESIGN:: Rotating digital display allows for any installation rotation and is easy to read; User-friendly indicator lights allow for simple system operation and monitoring; Corrosion and UV-resistant housing deliver durable, lasting use
  • SAFETY FEATURES: Water pressure and stack flue sensor for overheat prevention, auto shut-off when the temperature exceeds factory limits, and manual shut-off for servicing; Certified for Low NOx emissions
  • SPECIFICATIONS: Voltage: 120/240V; Intake/discharge plumbing: 1.5-inch; 0.75-inch gas line up to 50 feet from source (not included); Dimensions (L x W x H): 31.5 x 21 x 23 inches; Weight: 80 pounds

How to Build a Greenhouse Garden: Step by Step Grow, Maintain, Arrange The Inside of A Greenhouse: Build Own Passive Solar Greenhouse

$6.99  in stock
5 new from $6.99
1 used from $8.64
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

Is Adult Product
LanguageEnglish
Number Of Pages70
Publication Date2021-02-01T00:00:01Z

Airthereal Electric Tankless Water Heater, 9kW, 240Volts - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - for Sink and Faucet, Evening Tide series

$179.99  in stock
3 used from $128.92
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • ☼ Endless Hot Water: Imagine you are the last one in your family to take a shower before heading out for the day. You turn on the faucet and the water is freezing cold. Too bad you don’t have an Airthereal Electric Tankless Water to provide endless hot water on demand with no preheating, temperature fluctuations, or running out of hot water in the tank.
  • ☼ Save Space: That water heater in the basement or utility closet takes up a ton of space. This wall-mounted water heater uses 90% less space than a traditional hot water heater with a tank.
  • ☼ Save Energy: Water is only heated when you need it, not stored in a hot water tank. The self-modulating temperature technology only uses energy to heat up water while you are using it to save up to 50% on water heating costs compared to a typical tank water heater.
  • ☼ Important Note: In order to install 9kW Electric Tankless Water Heater it would requires 240 Voltage, 40 AMP Circuit Breaker Size. Please check to confirm that your breaker panel meet these specifications.
  • ☼ Safe To Use: With high temp protection, dry heating protection, and electrical leakage protection you can rest easily knowing you have safe, on-demand hot water to use on your schedule. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion.

Stiebel Eltron 233219 2.5 gallon, 1300W, 120V SHC 2.5 Mini-Tank Electric Water Heater

$219.00
$208.13
 in stock
13 new from $190.63
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Plugs into standard 120 volt outlet
  • T and P valve included
  • Wall-mounted with included bracket
  • Glass-lined tank and fast recovery
  • 6-Year warranty on tank

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

$599.00
$531.48
 in stock
2 new from $529.00
5 used from $396.75
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States
  • Pipe Fittings:3/4 inch NPT
  • Required Breaker:4 x 40 A

Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

$522.00
$495.59
 in stock
7 new from $495.59
7 used from $371.69
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control
  • 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
  • Bottom 3/4" NPT water connections
  • On demand, consistent and continuous hot water

thermomate Electric Tankless Water Heater, 11kW at 240 Volt, On Demand Instant Hot Water Heater, Self Modulating Energy Saving, Save Space, 2.15GPM at 35°F Rise

$249.99
$199.99
 in stock
1 used from $199.00
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • [Endless On Demand Hot Water] - Consistent hot water that never runs out when you need it. Continuously detect water temperature and flow rate to ensure efficient heating and stable performance within 1°F of your selected temperature. REQUIRES 2 SET of Double-pole 30AMP Breakers
  • [Last Long & No Leaking] - Alloy metal housing & water ports, heating element separated from water tube significantly reducing scale, corrosion and mineral buildup on the element, achieving better performance and low maintenance.
  • [Save Money and Space] - Self-modulating technology regulating the amount of energy required to heat water only when you need it with 99% efficient, saving up to 60% on water heating cost comparing to traditional tank water heater. Wall mounted compact size with no water tank, convenient for any spaces, saving floor space and fitting into tight spaces
  • [Easy Installation & Safety Protection] - ETL certified with overheating protection, auto stop heating when detecting no water, quality workmanship for leakage protection
  • [Installation] - 11 kilowatts at 240V draws max 46amp, 1/2” NPT male ports, 12AWG wire to 2 Double-pole 30AMP breakers, ideal for providing hot water for a bathroom, small sink, office break room and other point-of-use or low-flow applications

Honeywell HZ-789 EnergySmart Electric Oil Filled Radiator Whole Room Heater, Black, 24.45" H x 9.06" D x 13.74" W (HZ789)

$102.99
$82.18
 in stock
7 new from $82.18
7 used from $69.29
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • WHOLE ROOM HEAT: EnergySmart technology makes this heater not only powerful but energy efficient. It features Digital EasySet Controls with a 1-12 Hour Timer, adjustable thermostat & 3 heat settings.
  • SAFE & MOBILE: A large, easy-pull handle & easy-glide wheels make this heater simple to move, & it's loaded with safety features: 360° Tip-Over Switch, overheat protection & thermal insulated wiring.
  • INCREASE YOUR COMFORT: Portable heaters can help increase comfort & supplement home heating needs. Honeywell carries a range of heaters including personal, ceramic, fan forced, radiant, & infrared.
  • SMART SAVINGS: Portable heaters are an easy way to add warmth to any space. By turning down your home thermostat a few degrees & heating just the room you're in, a space heater can help you save money.
  • HONEYWELL QUALITY: Help improve heating & energy savings in your home, office, or school using an energy efficient Honeywell portable heater to bring comfort to any sized room from small to large.

Hot Water Heater,110V 3000W Mini Electric Tankless Instant Hot Water Heater Bathroom Kitchen Washing (US Plug)(Black)

$37.00
$9.99
 in stock
14 new from $40.98
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • 【SELLER TIPS】Those who mind will buy with caution! ! !The heating power of this product is constant, the temperature is adjusted by the water flow regulating valve or the tap switch, the high temperature of the water flow is low, and the low temperature of the water flow is high. According to our actual tests, the outdoor water temperature is low, and the water flow should not be too large, which is suitable for daily washing. Those who mind will buy with caution! ! !
  • 【INSTANT & SUFFICIENT HOT WATER】The heating of the product is adjusted by the water flow regulating valve or the faucet switch. Large water flow means low temperature, and small water flow means high temperature. Applied with 3000W heating system, the electric water heater supplies instant, consistent and endless hot water shortly, no waiting for preheat nor terrible temp up & down, perfect companion for sinks. Time to get rid of those "lukewarm" toys.
  • 【SMART SELF ADJUSTMENT】The hot water heater adjusts power input based on flowing rate and temp setting in real time. thus you still get ideal temperature instead of scalding hot water, which means comfortable experience, simple operation. It is recommended that the product be washed in winter for hand washing, dish washing, face washing and other scenes;Those who mind will buy with caution! ! !
  • 【Eco & Electric & Water Saving】 Safe heater, save up to 55% on your electric cost, water saving, no pollution, no exhaust gas.The heating of the product is adjusted by the water flow regulating valve or the faucet switch. Large water flow means low temperature, and small water flow means high temperature. It is recommended that the product be washed in winter for hand washing, dish washing, face washing and other scenes.
  • 【SAFE AND DURABLE】Applied with multiple protection devices, every piece goes through strict tests to ensure 100% safe. Inner water and electricity lines are designed to run separately so as to avoid leakage or harm of scale build up. Safe heater, electricity saving, water saving, no pollution, no exhaust gas.The temperature is adjusted by the water flow regulating valve or the tap switch.Those who mind will buy with caution! ! !

WaterAce WA80UP Submersible Utility Pump, 1/2 HP, Black

$101.99  in stock
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Designed for numerous residential uses including flooded basements, window wells, spas, cisterns, sumps, and flooding in low lying areas
  • Continuous duty, efficient 115V PSC (permanent split capacitor) motor for lower Carbon footprint; higher efficiency using less energy to operate
  • Made of corrosion resistant thermoplastic for long life
  • Download the user manual under the technical specification section of this page for safety, installation, troubleshooting, and information
  • Click on the WaterAce products link at the top of this page to see more pump options from WaterAce products

110V-120V Electric Tank Hot 2.5 Gallon Water Heater Storage,Small Under Sink Counter RV TR 1.5KW Endless Trailer Kitchen Compact Point-of-Use,1 PCs 16” Long 1/2”FIP Stainless Steel Water Hoses

$124.98  in stock
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • 【SAFE DURABLE & LONGEVITY】Made of stainless steel and never rust,Anti-leakage plug,Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant,This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV.
  • 【SMART INVERTER FOR ENERGY SAVING】Automatic heat preservation and storage of hot water, 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%,Maximum temperature149℉,The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature.
  • 【EASY TO USE】storage tank electric water heater with easy-to-operate knob temperature adjustment design,Easy to control warmth.Vent valve, Tee pipeline, pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories.
  • 【FAST RECOVERY RATE】Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time,8-15 minutes to heat to your desired temperature).
  • 【COMPACT DESIGN】Can be shelf, wall or floor mounted (Water inlet and outlet upward); Dimensions: 13.0''L x11.4''W x10.6''H; 9.5lbs; 1/2″NPT NPT. 1.5 kW, 110-220 volts. One-year warranty and 24H customer service support, feel free to contact us.

Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 6 x 11 x 3 Inch

$192.01  in stock
9 new from $184.98
8 used from $119.26
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Can provide hot water for one sink at 0.5 GPM in warmer climates
  • Requires 1 x 30 amp breaker and 10 AWG wire
  • For one sink at 0.5 GPM in colder climates the POU 6 is recommended
  • Amperage Draw 29 amp. kW - 3.5 kW
  • Connection Fittings 1/2" NPT

BLACK+DECKER 10,000 BTU Portable Air Conditioner with Remote Control, White

$379.99  in stock
4 new from $379.99
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • QUIET & POWERFUL - Our 6,000 BTU DOE (10,000 BTU ASHRAE) compact air conditioner (16.5 x 11.5 x 26 in,) will keep you cool and comfortable all summer. An adjustable fan speed cools the air to 65°F at the coolest setting. Sleep mode makes it extra quiet while you rest
  • PERFECT FOR SMALL ROOMS - This floor-standing portable AC unit provides steady, fast, effective cooling for rooms up to 150 sq. ft. It’s the ideal small air conditioner for dorms, apartments, cabins, campers, offices, bedrooms, or living rooms
  • SIMPLE & QUICK TO INSTALL – Just wheel this portable air conditioner into any room with a double hung or sliding window. Attach the included hose (4’ 11”) & window adapter, & plug it in to an outlet! At the end of the season, just unhook & store
  • EASY TO USE & CLEAN – The simple remote control & top-mounted LED display with 24-hour timer allow you to precisely control the air temperature. To clean the filter, just slide it out twice a month, rinse it thoroughly under running water, & put it back
  • 3-in-1 FUNCTIONALITY - Combines 3 energy efficient functions for all of your cooling & ventilation needs with cool, fan, & dehumidifying modes all in one machine. Bucket-less, self-evaporating operation makes your living space cool, clean and dry

Envi Plug-in Electric Panel Wall Heater for Home, Energy Efficient, Child Safe, Quiet, Great for Bedrooms, Bathrooms, Office, Kitchen, Garage, Tip-Over Protection, Comfort-Level Adjustable Thermostat

$179.95  in stock
2 new from $179.95
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • SAVE UP TO 50% OR MORE ON HEATING BILL ENERGY COSTS. Turn down your central heat and heat the areas of your home where you want, when you want, for as little as 4 cents per hour. Super-efficient, ultra-safe, wall mounted, low wattage, whole room heater that pays for itself in less than one winter. Supplements or replaces central heating.
  • COOL TO THE TOUCH AT ONLY 90 DEGREES FAHRENHEIT WITH WALL-SENS SAFETY SENSOR TO CUT POWER IF THE HEATER IS REMOVED FROM THE WALL.Can be left running 24/7 for peace of mind to protect children, the elderly and pets. Doesn’t blow dust or allergens around a room, creating a cleaner, healthier environment for allergy sufferers and those with respiratory problems. Doesn’t dry out the air thus reducing winter nose bleeds and dry eye syndrome.
  • EXPERIENCE TOTALLY SILENT (FAN-LESS), GENTLE WARMTH HEATING WITH AN AUTO-DIMMING POWER LIGHT FOR A GREAT NIGHT'S SLEEP! Patented, fan-less design with “Stack Convection Technology” creates an updraft of warm, slow-moving air that gently circulates throughout the entire room.
  • SIMPLE TO INSTALL IN MINUTES (NO DRILL OR CONTRACTOR REQUIRED). Easy to operate and clean with no moving parts so it is 100% maintenance free. Zero lifetime repair costs compared to expensive central heating system. Slim, sleek and stylish space saving design, reduces floor clutter! Only 2 inches thin!
  • BRAND NEW FOR 2022 MODEL NUMBER LE5012P! NEW MODERN DESIGN AND ELEGANT TOP VENT AND CONTROLS! LOW POWER DRAW (ONLY 500 WATTS & 4.2 AMPS) SO MULTIPLE HEATERS CAN BE INSTALLED WITHOUT TRIPPING A BREAKER. Great for generators & solar power. Widely used in bathrooms and bedrooms, in offices and businesses, in hotels, and in nursing homes and apartment complexes. 3 year warranty, made in USA and award winning customer service!

Eemax EEM24013 Electric Tankless Water Heater, Blue

$228.80
$209.00
 in stock
3 new from $209.00
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Tank less water heaters provide a continuous Supply of hot water and only heats the water you need, when you need it
  • Instant, consistent and endless hot water
  • The most advanced, self-modulating technology available, meaning the unit will adjust how much energy needs to be input based on how much hot water is needed
  • Compact size saves valuable storage space
  • Before purchase and installation, Please verify that this EEM24013 is the correct size for your hot water needs

Mueller Ultra Kettle: Model No. M99S 1500W Electric Kettle with SpeedBoil Tech, 1.8 Liter Cordless with LED Light, Borosilicate Glass, Auto Shut-Off and Boil-Dry Protection

$49.99
$29.97
 in stock
6 new from $29.97
2 used from $26.96
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • PUREST TASTING WATER - SUPERIOR QUALITY – Made with the finest quality Borosilicate Glass, which lasts a lifetime, 304 stainless steel and heat resistant copolyester for the safest, freshest water. A premium long lasting lid that stays shut when it’s supposed to for years to come, unlike the majority of the others on the market.
  • MAXIMUM SAFETY - High quality thermostat controller, auto shut-off within 30s after the water is fully boiling. Boil-dry safety feature where it turns off if it detects there is no water inside. Built with a Heat-Resistant Anti-Slip Grip Handle, no worries of it slipping out of your hands or getting burned while holding it. Will not contaminate liquids.
  • FASTEST BOIL - Equipped with bright LED’s which indicate the kettle is heating. The controller with Mueller SpeedBoil circuitry will boil the water lightning fast and be ready to use for tea, oatmeal, coffee, pasta and much more.
  • VERSATILITY – Completely Cordless when off the base, the Mueller Ultra Kettle teakettle allows you easy and unobstructed pouring. 360° Clear Rotational Glass Body is perfect for precise measuring of water.
  • Made in China

DIY Solar Projects - Updated Edition: Small Projects to Whole-home Systems: Tap Into the Sun

$24.99
$13.19
 in stock
26 new from $11.85
29 used from $6.45
Free shipping
Amazon.com
as of June 25, 2022 1:30 pm

Features

  • Cool Springs Press

What is it that you look for in a high-quality Energy Efficient Water Heater? Surely we know what we’re talking about. When there are so many options, it can be difficult to decide which one is right for you. We have done a lot of research and put together lists that should help you narrow down your choices. There is a list of questions that you must have on your mind. It is still important for you to do your own research, even though Consume with Care has done everything they can to help you. You need to check out any relevant Energy Efficient Water Heater before buying it, they are exactly what you need.

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Buying guides, word-of-mouth, rating websites, testimonials from previous customers who have purchased these products, and online forums devoted to discussing topics related to Best Energy Efficient Water Heater are some of the potential sources for this type of information.

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The list has been carefully compiled with both big data and artificial intelligence, so it is completely objective and authentic. The top 10 lists for each category are developed using custom algorithms. When it comes to technology, there are many more options than just these two at the moment, but they will change frequently based on how fast technology advances.

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1- Price

Don’t purchase the highest quality Energy Efficient Water Heater if you don’t compare prices. It is possible for some sellers to charge different amounts for their products because they have different costs associated with them such as taxes and shipping fees that must be factored in; however, Amazon offers great deals with the combo listings and you can browse through other products until you find one that works

2- Brand Value

The price should not be the only consideration when buying a high-ranking Energy Efficient Water Heater. It is important to check the brand name and see if it is well-established or less popular as this will influence how much they cost compared to other brands of the same quality. Well-known brands for this type of product tend to cost more than lesser-known ones, but there is also the issue of durability and efficiency, all depending on whether they’ve been around long enough.

3- Features

It’s a good idea to ask yourself if the purchase is really necessary before making a purchase. If it isn’t for everyday use, you can save more money by opting for an alternate option that will fit your budget better.

In determining what kind of price range it would fall into, consider whether or not an item would be useful often. It’s so that we don’t get lured into buying products outside of our comfort zone just because they look cheaper.

4- Product Reliability

Before making a big purchase, it is important to ask yourself if the purchase will fulfill your long-term needs. The products may or may not work for you, depending on their longevity and dependability.

5- Pros and Cons of the product

If you want a product that has all the features you need, you need to read other reviews and ask people who have used the product before. This will give you a better idea of what they think of it.

If any of the following applies to you, this product is for you:

A durable, high-quality item that will last long enough to be used on a daily basis is what you need.

As part of your lifestyle, you need to have all the features listed on your wish list. It’s important that you get it at an affordable price point so that you don’t break your bank account or your spirituality.

6- Product Value

If you use The Most Valued Energy Efficient Water Heater, you can easily evaluate and compare the value you receive from each product.

7- Service

Before making any purchases, it is important to be aware of the quality and longevity. It is important to consider how long your purchase or replacement parts will last, as this will affect whether it was worth the purchase in the first place.

8- Specifications

It is possible to get an idea of the power of a product by knowing its specifications.

9- Warranty

Getting a warranty on your product is the last thing you should do. How did this come about? I don’t know what you would do if something went wrong with them or you wanted an exchange. You can check to see if the seller offers returns on incorrect orders as well as faulty products delivered to your house. This ensures that no matter how buyer beware you may feel, there is always a safety net in place just waiting until you need it.

10- Customer Reviews

If you are about to make a big purchase, reading through customer feedback may be the last thing that comes to your mind. This is an important step for us to know not only what we are getting into before making our purchases, but also how well they will fulfill their promises. We think they will live up to our expectations.

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In order to provide the most relevant and up-to-date information, Addictionun Scripted always strives to be the most up-to- date source. We use online resources to research articles about Energy Efficient Water Heater so that we can keep you up-to-date when researching them. Everyone deserves reliable content from trusted sources like ours, and if something you read about this business doesn’t apply or is inaccurate, please let us know immediately.

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