Top 10 Best Home Tankless Water Heaters

of November 2024
1
Best ChoiceBest Choice
Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
Rheem
Rheem
10
Exceptional
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2
Best ValueBest Value
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Rheem
Rheem
9.9
Exceptional
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3
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented
EcoSmart
EcoSmart
9.8
Exceptional
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4
Stiebel Eltron Tankless Water Heater  Tempra 24 Plus  Electric, On Demand Hot
Stiebel Eltron
Stiebel Eltron
9.7
Exceptional
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5
Rinnai RL75IN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Indoor
Rinnai
Rinnai
9.6
Exceptional
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6
Rinnai V65EN Tankless Hot Water Heater, 6.5 GPM, Natural Gas, Outdoor
Rinnai
Rinnai
9.5
Excellent
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7
EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x
EcoSmart
EcoSmart
9.4
Excellent
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8
Rheem 18kW 240V Tankless Electric Water Heater
Rheem
Rheem
9.3
Excellent
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9
EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with
EcoSmart
EcoSmart
9.2
Excellent
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10
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY
Rheem
Rheem
9.1
Excellent
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About Home Tankless Water Heaters

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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.

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

ONOFF Dial Control with adjustable digital temperature display. Self-modulating power control. 24kW Model Flow Rate up to 5.9 GPM for RTEX-24. Bottom 34 NPT water connections. On demand, consistent and continuous hot water.

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.

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

CONTINUOUS FLOW Advanced Flow Control patented technology invented by Stiebel Eltron, automatically maintains water temperature for constant comfort. Itll 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 its 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 140F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels, Tempra Plus tankless water heaters can be set to limit the maximum hot water temperature to 109F. This can be important in some installations to prevent the possibility of scalding.. WARRANTIES INCLUDED Stiebel Eltrons 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.

Rinnai RL75IN Tankless Hot Water Heater, 7.5 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 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.

Rinnai V65EN Tankless Hot Water Heater, 6.5 GPM, Natural Gas, Outdoor Installation

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 RE160eN 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 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.

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.

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 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.

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

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 12 NPT adapters included side 12 inch Compression water connections. 99.8 energy efficient. External controls to adjust temperature in increments of 1f. 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. 54 A.
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