Top 10 Best Tankless Water Heaters

of November 2024
1
Best ChoiceBest Choice
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented
EcoSmart
EcoSmart
10
Exceptional
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2
Best ValueBest Value
Rheem Prestige Condensing Tankless Indoor Natural Gas Water Heater 6.8 GPM -
Rheem
Rheem
9.9
Exceptional
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3
Rinnai RL94IN Tankless Hot Water Heater, 9.8 GPM, Natural Gas, Indoor
Rinnai
Rinnai
9.8
Exceptional
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4
Rheem 18kW 240V Tankless Electric Water Heater
Rheem
Rheem
9.7
Exceptional
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5
Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater
EcoSmart
EcoSmart
9.6
Exceptional
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6
EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x
EcoSmart
EcoSmart
9.5
Excellent
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7
FOGATTI RV Tankless Water Heater, 2.9 GPM, Gen 2, with White Door and Remote
FOGATTI
FOGATTI
9.4
Excellent
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8
Stiebel Eltron 239223 Tankless Water Heater  Tempra 29 Plus  Electric, On
Stiebel Eltron
Stiebel Eltron
9.3
Excellent
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9
Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
Rheem
Rheem
9.2
Excellent
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10
EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with
EcoSmart
EcoSmart
9.1
Excellent
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About Tankless Water Heaters

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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.

Rheem Prestige Condensing Tankless Indoor Natural Gas Water Heater 6.8 GPM - RTGH-68VLN-2

Hot water without the wait - or the waste. Low operating cost - High energy efficiency and water savings setting. Space Savings - Compact, space-saving design. Perfect for a tank replacement.. Water Gas Leak Detection will shut down unit and provide an error code. For Indoor use only.

Rinnai RL94IN Tankless Hot Water Heater, 9.8 GPM, Natural Gas, Indoor Installation

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 RE180iN 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 9.8 GPM 6 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.

Rheem 18kW 240V Tankless Electric Water Heater

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 34 inch NPT water connections. Threaded for easy replacement, simple installation, digital temperature display.

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

Sleek and compact design with digital output temperature display. ECOSMART tankless water heaters are 99.8-percent energy efficient. Manufactured in United States. Pipe Fittings34 inch NPT. Required Breaker4 x 40 A. 150 A.

EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x 3.5

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. Recommended Electrical Panel 200 Amps. NEVER run out of hot water with an ECOSMART tankless water heater.. Save up to 12 cubic feet of storage space.. Digital temperature control in 1-degree increments gives users complete control of hot water.

FOGATTI RV Tankless Water Heater, 2.9 GPM, Gen 2, with White Door and Remote Controller, 55,000 BTU, InstaShower 8 Plus, Best High Altitude Performance, Ideal for RVers' Everyday Use

Unprecedented experienceThe high altitude suitability mode allows the machine to run smoothly even when driving the caravan to the high Denver plateau at 9800 feet. Staged combustion technology controls the amount of flame in summer, prevents the water from getting too hot, and saves the limited propane gas available for caravan travel.. All RV water heaters can be replacedThe Fogatti RV water heater has a wide range of applications. The opening is 13 x 13 inches and the door is 15 x 15 inches. It can replace Suburban and Atwood's 6 gallons tank water heaters, as well as Girard and Furrion's tankless water heaters. If you were previously using a 10 gallons tank water heater, it will need to be retrofitted with an 18 x 18 door.. Incessant hot waterWith 55,000 BTU of power, it can produce a maximum of 2.9 GPM of hot water. Some tank heaters can only store up to 6- 10 gallons of hot water and run out of hot water in 5- 8 minutes, whereas our hot water supply lasts over 20 minutes.. No waitingRV tankless water heaters are taking off. Tankless water heaters are better than tanked water heaters for continuous showering of multiple people. There is no need to waste 20- 30 minutes waiting for hot water in the middle of the shower, so you can enjoy hot water at all times. It uses propane for heating, so there is no need to worry about running out of power in your caravan.. Save money and troubleFogatti has always thought of you, with a pressure relief valve built into the product, so you don't have to buy and install it separately. And it also comes with a 15 x 15 door and an intelligent remote controller up to 2 meters long.. Safety and reliabilityThe product is CSA certified and has multiple protection features such as a built-in forced exhaust fan on top, stable combustion, automatic gas shut-off for accidental flame failure and anti-freeze..

Stiebel Eltron 239223 Tankless Water Heater Tempra 29 Plus Electric, On Demand Hot Water, Eco, White, 23

On demand a continuous and unlimited supply of hot water. Sleek design saves space and no venting required, It also features two different temperature memory presets, making it easy to adjust for personalized needs.. Requires hard-wired 240 or 208-volt electric service, with a maximum draw of 28,800 watts at 240 volts or 21,600 watts at 208 volts. Requires 3 separate dedicated 40 amp breakers with 8 gauge copper wiring, and a minimum of 200 amp total service to the residence.

Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater

Hot water without the wait - or the waste. Low operating cost - High energy efficiency and water savings setting. Space Savings - Compact, space-saving design. Perfect for a tank replacement.. Water Gas Leak Detection will shut down unit and provide an error code. For use indoor only.

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 gallonsmin 3. 51 gal USmin. The product works and is compatible with 2 X 40 AMP DP breakers and 2 X 8 AWG wire. Lifetime warranty for residential use. Save up to 60 on your water heating costs with the most advanced, self modulating technology available. Never run out of hot water with an ECOSMART tankless water heater.. Save up to 12 cubic feet of storage space.. Digital temperature control in 1-degree increments gives users complete control of hot water.
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