Rheem is the creator of highly prestigious tankless water heaters that thrive in even the most demanding use case scenarios. Boasting advanced control and self-diagnostic systems that ensure top performance and safety, Rheem’s tankless units can deliver uninterrupted hot water flow at efficiencies that surpass 94%, and at a satisfying flow rate. The company offers both electric and gas units, at a max power of 27 kiloWatt, and the best low-activation flow rates in the industry. Another important feature is the built-in condensate neutralizer that is found in the more costly models which reduces the installation and deployment time and cost, and increases the energy efficiency even more.
Rheem RTEX-18 18kW 240V Electric Tankless Water Heater, small, Gray
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 instal... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY
$254.00External 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 Compr... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
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
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater
$1,675.0094-Percent Energy efficient with stainless-steel condensing heat exchanger Intelligent electronic controls designed to increase energy efficiency and safety Third party efficiency listed by AHRI Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PV... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTGH-RH11DVLP Condensing Tankless Gas Built-in Recirculation Water Heater, 199,000 Btu, Gray
$1,455.90Programmable timer based activation Built-in Recirculation, Reduces Water Waste Manufactured in Mexico
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTG-84XLN-1 Performance Mid-Efficiency Tankless 84 Outdoor Water Heater, Gray
$799.00Exclusive Water Savings technology conserving up to 1, 100 gallons per year 157, 000 BTU (gas consumed per hour) Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state Recirculation pump ready kit ready For use outd... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
$1,099.00Exclusive Water Savings technology conserving up to 1, 100 gallons per year 199, 900 BTU (gas consumed per hour) Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state Recirculation pump ready kit ready For use indo... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem Professional Classic Tankless Electric RTEX-11 Water Heater, Gray
$305.95ON/OFF Dial Control with adjustable digital temperature display Self-modulating power control 11kW Model Flow Rate: up to 2.68 GPM Side 1/2" NPT water connections On demand, consistent and continuous hot water
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem Professional Classic Tankless Electric RTEX-06 Water Heater, Gray
$171.00Push-button ON/OFF control with LED temperature display 6 kW Model Flow Rate: up to 1.0 GPM Perfect for 1 or 2 sinks Bottom 1/2" NPT water connections On demand, consistent and continuous hot water
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTGH-84DVLN-2 Professional Prestige Series: 8.4 GPM Indoor Tankless Water Heater, Gray
$1,345.74Condensing Technology for Greater Efficiency and Significant Energy Savings Residential Temperature Settings: 98°F - 140°F Manufactured in Mexico
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTGH-RH10DVLN Prestige Series Professional Condensing Tankless Gas Water Heaters with Built-in Recirculation, Gray
$1,286.99Rheem Prestige RTGH is a series of high efficiency condensing tankless gas water heaters designed for continuous hot water and 180,000 btu With dual stainless steel condensing heat exchanger, Max GPM of 11 (on 180K BTU models) Instant Hot Water at th... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTG-84DVLN 8.4 GPM Low NOx Direct Vent Tankless Natural Gas Water Heater
$987.56Natural Gas Tankless Water Heater Direct Vent Indoor 8.4 gal/min. at 35-Degree Rise UMC-117 remote control and 10-Feet of thermostat wire is included Low Nox Version
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem Professional Classic Tankless Electric RTEX-08 Water Heater, Gray
$257.33ON/OFF Dial Control with adjustable digital temperature display Self-modulating power control 8kW Model Flow Rate: up to 1.95 GPM Side 1/2" NPT water connections On demand; continous hot water
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTGH-RH11DVLN Condensing Tankless Gas Built-in Recirculation Water Heater, Gray
$1,322.33Exclusive Water Savings technology conserving up to 1, 100 gallons per year 199, 000 BTU (gas consumed per hour) Built-in recirculation pump Instant hot water For use indoor only
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTGH-RH10DVLP Prestige Series Condensing Tankless Water Heater With Built-In Recirculation, 180,000 Btu, Gray
$1,320.89Programmable timer based activation Built-in Recirculation, Reduces Water Waste Manufactured in Mexico
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RETEX-27 Performance 27 kw Self-Modulating 5.3 GPM Electric Tankless Water Heater
$615.00Brand New in box. The product ships with all relevant accessories
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
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 a... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 7” x 11” x 3”
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 Max temper... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
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... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, White
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... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai RL94iN Natural Gas Tankless Hot Water Heater, 9.8 GPM
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 recir... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
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 Fittings:3/4 inch NPT Required Breaker:4 x 40 A 150 A
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5
$507.04Lifetime 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 GP... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai V94iN Natural Gas Tankless Hot Water Heater, 9.8 GPM
$1,024.20Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Opti... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Tankless Water Heater, Camplux Constant Propane Water Heater, 3.18 GPM On Demand Water Heater, Instant Hot Water Heater, Indoor, Black
3.18 GPM Instant Constant Water Heater -Camplux 3.18 GPM propane tankless water heater delivers 3.18 gallons per minute of on-demand endless hot water ensures constant comfortable instant hot water for 2-3 persons whole house. 3.18-GPM heater is acti... read more
(as of January 16, 2022 18:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, White
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... read more
(as of January 17, 2022 00:09 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
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 a... read more
(as of January 17, 2022 00:09 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)