This is the leading choice of other customers buying products related to on demand water heater. To get more alternatives, check out our catalog of On Demand Water Heater or use the search box.
Table of Contents
- 1 Best On Demand Water Heater Reviews
- 2 Offers and Discounts
- 3 Cheap On Demand Water Heater
- 4 Buy On Demand Water Heater Online
- 4.1 EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
- 4.2 EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1
- 4.3 EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology
- 4.4 Rinnai V65eP Non-Condensing Propane Tankless Water Heater, Outdoor Installation, Up to 6.5 GPM
- 4.5 Eccotemp i12-LP Water Heater, 4 GPM, Black
- 4.6 Rinnai RL75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM
- 4.7 Marey ECO110 220V Self-Modulating 11 kW, Small, White
- 4.8 Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5
- 4.9 Eemax SP3512 Electric Tankless Water Heater, 120V 3.5 kW, Only for 0.5 GPM sinks
- 4.10 Marey GA5PORT Portable Propane Gas Tankless Water Heater, Small, White
- 5 Best On Demand Water Heater 2024
Best On Demand Water Heater Reviews
TOP CHOICE
EcoSmart
EcoSmart
GOOD PRICE QUALITY RATIO
EcoSmart
-
-
-
- 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
- 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
- Required Breaker Quantity: Three 40 Amp Double Pole
- The product is highly durable
- The product is easy to use
- Manufactured in China
- Amperage (amps): 75. Activation flow: 0. 3 GPM. Flow Rate @ 35 F Rise (gallons/min): 3. 51 gal (US)/min
- The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire
- Lifetime warranty for residential use
TOP CHOICE
EcoSmart
Score
-
- 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
EcoSmart
Score
-
- 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
- Required Breaker Quantity: Three 40 Amp Double Pole
GOOD PRICE QUALITY RATIO
EcoSmart
Score
-
- The product is highly durable
- The product is easy to use
- Manufactured in China
- Amperage (amps): 75. Activation flow: 0. 3 GPM. Flow Rate @ 35 F Rise (gallons/min): 3. 51 gal (US)/min
- The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire
- Lifetime warranty for residential use
Offers and Discounts
If you are looking for cheap On Demand Water Heater, here we will post any offer that we find:
If there are no available offers right now, bookmark this page and come back soon. Price and availability change quickly.
Cheap On Demand Water Heater
The cheapest options among the top 10:
Buy On Demand Water Heater Online
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
- 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
EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1
- 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
- Required Breaker Quantity: Three 40 Amp Double Pole
EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology
- The product is highly durable
- The product is easy to use
- Manufactured in China
- Amperage (amps): 75. Activation flow: 0. 3 GPM. Flow Rate @ 35 F Rise (gallons/min): 3. 51 gal (US)/min
- The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire
- Lifetime warranty for residential use
Rinnai V65eP Non-Condensing Propane Tankless Water Heater, Outdoor Installation, Up to 6.5 GPM
- Original Design: Tankless hot water heater only heats when necessary to conserve energy; For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE160eP model
- Never Run Out of Hot Water with this Compact Propane Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 6.5 GPM (5 fixtures at once)
- Smart, Durable Design: Enhanced scale detection helps prevent serious, long-term damage to unit; Includes 15-, 5-, and 1-year residential guarantee for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician
- Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region
Eccotemp i12-LP Water Heater, 4 GPM, Black
- Whole home indoor, gas powered tankless water heater, rated at 4 GPM that activates only on demand and no pilot light needed, reducing energy consumption
- Sleek, modern design with black tempered glass front panel featuring an easy to use LED display controls
- Features fully automatic temperature controls with an energy saving mode and child lock technology
- Safe electronic ignition system; Plugs into standard 110v electrical outlet with UL-listed cord
- Uses standard 1/2" NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation
Rinnai RL75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM
- Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits; For the latest in non-condensing technology that speeds up service and installation, check out our new RE160iN model
- Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 7.5 GPM (5 fixtures at once)
- Smart, Durable Design: Includes 12-, 5-, and 1-year residential guarantee and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician
- Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region
Marey ECO110 220V Self-Modulating 11 kW, Small, White
- The 220V ECO 11kW unit is ideal for 1 simultaneous points of use in US Southern Regions where the incoming water temperature is above 70°F. In colder regions, it is suitable for a sink at 1. 3 GPM.
- German-designed with high quality stainless steel water channel and heating chamber.
- SMART Technology: Easy management and simple adjustments on a LCD Panel allows you to program the exact desired water temperature thereby optimizing electricity consumption.
- Requires (1) 60 Amp breaker and must be installed by a professional plumber or electrician to ensure safety and quality.
- Marey’s ECO line can maintain 98% efficiency level throughout their lifetime.
Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5
- Lifetime warranty
- Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
- Never run out of hot water with an ECOSMART tankless water heater
- Patented Self Modulating Technology and design.Activation flow 0.3 GPM
- ECOSMART tankless water heaters are 99.8-percent energy efficient
- 100 A
Eemax SP3512 Electric Tankless Water Heater, 120V 3.5 kW, Only for 0.5 GPM sinks
- Ease of installation - No T and P valve needed - Only bring one cold water line to lavatory
- Connections: 3/8-Inch compression fittings at top of unit
- Voltage: 120V, Power: 3. 5kW
- Temperature rise at . 5GPM = 48 Degree Fahrenheit, Turn on: 0. 5. Dimensions: 10. 75-Inch W x 5. 25-Inch H x 3-Inch D
- Amperage: 29
Marey GA5PORT Portable Propane Gas Tankless Water Heater, Small, White
- Naturally vented outdoors: you don't need to buy a extra venting
- Serves to a variety of applications, since washing your car, windows cleaning, wash your horse or your dog and take a hot shower
- Perfect for campsites, cabins, remote areas or just around the house. BTU/h - 35000 BTU/h. Fuel Type - LPG(liquid propane gas). pipe fittings - 1/2 inch NPT, incoming/outgoing water and gas
- Provide endless hot water on demand only as needed
- No electrical connection is required
- Includes a gas hose with csa approved regulator for attaching to a standard liquid propane tank
After seeing the best On Demand Water Heater 2023 lets look into the future:
Best On Demand Water Heater 2024
These are the new On Demand Water Heater releases available. Will the best On Demand Water Heater 2024 be among them?
Related Products:
- On Demand Electric Water Heater
- Rv On Demand Water Heater
- On Demand Water Heater Propane
- On Demand Hot Water Heater Propane
- Tankless Water Heater
- Solar Water Heater
- Under Sink Water Heater
- Suburban Water Heater
- Water Heater Timer
- Hybrid Water Heater
- Water Heater Kettle
- 30 Gallon Water Heater
- Solar Hot Water Heater
- Small Hot Water Heater
- Tankless Water Heater For Rv
Last update 2021-09-03. Price and product availability may change.