Best tankless water heater. Rheem brand. New releases 2020

Rheem 240V 3 Heating Chambers RTEX-24 Residential Tankless Water Heater

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Rheem 240V 3 Heating Chambers RTEX-24 Residential Tankless Water Heater

Current price: 495 USD

Saving: $24.00 (5%)


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Height: 19 Inches

Length: 4 Inches

Width: 18 Inches

Weight: 17.8 Pounds

  • Flow Rate: up to 5.9 GPM
  • Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)

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Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, small, GREY

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Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, small, GREY

Current price: 411.97 USD


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Height: 19 Inches

Length: 4 Inches

Width: 15 Inches

Weight: 8.5 Pounds

  • Flow Rate: up to 5.9 GPM
  • Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)

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

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

Current price: 299 USD


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Height: 13 Inches

Length: 4 Inches

Width: 9 Inches

Weight: 4 Pounds

  • Flow Rate: up to 5.9 GPM
  • Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • 54 A
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy

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Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater

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Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater

Current price: 1189 USD

Saving: $74.00 (6%)


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Height: 27.5 Inches

Length: 18.5 Inches

Width: 9.75 Inches

  • Flow Rate: up to 5.9 GPM
  • Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • 54 A
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Low Nox Version
  • Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
  • Third party efficiency listed by AHRI
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • 94-Percent Energy efficient with stainless-steel condensing heat exchanger

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Rheem RTG-84XLN-1 Tankless Water Heater, Grey

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Rheem RTG-84XLN-1 Tankless Water Heater, Grey

Current price: 701.79 USD

Saving: $97.21 (12%)


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Height: 23.63 Inches

Length: 8.88 Inches

Width: 13.88 Inches

Weight: 54 Pounds

  • Flow Rate: up to 5.9 GPM
  • Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • 54 A
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Low Nox Version
  • Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
  • Third party efficiency listed by AHRI
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • 94-Percent Energy efficient with stainless-steel condensing heat exchanger
  • Fuel Type: Natural Gas
  • For use outdoors with freeze protection up to -30 degrees
  • Recirculation pump ready kit ready
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year

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RHEEM 120V Undersink Electric Tankless Water Heater, 3500 Watts, 29 Amps - Water Heaters

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Search only CAI - RHEEM brand name
RHEEM 120V Undersink Electric Tankless Water Heater, 3500 Watts, 29 Amps - Water Heaters

Current price: 193.87 USD


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  • Flow Rate: up to 5.9 GPM
  • Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • 54 A
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Low Nox Version
  • Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
  • Third party efficiency listed by AHRI
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • 94-Percent Energy efficient with stainless-steel condensing heat exchanger
  • Fuel Type: Natural Gas
  • For use outdoors with freeze protection up to -30 degrees
  • Recirculation pump ready kit ready
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year

More Info

Rheem 240V 3 Heating Chambers RTEX-27 Residential Tankless Water Heater

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Search only Rheem brand name
Rheem 240V 3 Heating Chambers RTEX-27 Residential Tankless Water Heater

Current price: 600 USD

Saving: $29.00 (5%)


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Height: 19 inches

Length: 4 inches

Width: 18 Inches

Weight: 17.8 Pounds

  • Flow Rate: up to 5.9 GPM
  • Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • 54 A
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Low Nox Version
  • Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
  • Third party efficiency listed by AHRI
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • 94-Percent Energy efficient with stainless-steel condensing heat exchanger
  • Fuel Type: Natural Gas
  • For use outdoors with freeze protection up to -30 degrees
  • Recirculation pump ready kit ready
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)

More Info

Rheem RTG-84XLP-1 Tankless Water Heater, Grey

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Search only Rheem brand name
Rheem RTG-84XLP-1 Tankless Water Heater, Grey

Current price: 799 USD


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Height: 23.63 Inches

Length: 8.88 Inches

Width: 13.88 Inches

Weight: 54 Pounds

  • Flow Rate: up to 5.9 GPM
  • Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • 54 A
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Low Nox Version
  • Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
  • Third party efficiency listed by AHRI
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • 94-Percent Energy efficient with stainless-steel condensing heat exchanger
  • Fuel Type: Natural Gas
  • For use outdoors with freeze protection up to -30 degrees
  • Recirculation pump ready kit ready
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • For use outdoors with freeze protection up to -30 degrees
  • Recirculation pump ready kit ready.8.4 gal./min. at 35° F rise max
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year

More Info

Rheem 240V Heating Chamber RTEX-06 Residential Tankless Water Heater

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Search only Rheem brand name
Rheem 240V Heating Chamber RTEX-06 Residential Tankless Water Heater

Current price: 84.41 USD

Saving: $86.59 (51%)


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Height: 6 Inches

Length: 3 Inches

Width: 11 Inches

Weight: 4.5 Pounds

  • Flow Rate: up to 5.9 GPM
  • Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • 54 A
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Low Nox Version
  • Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
  • Third party efficiency listed by AHRI
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • 94-Percent Energy efficient with stainless-steel condensing heat exchanger
  • Fuel Type: Natural Gas
  • For use outdoors with freeze protection up to -30 degrees
  • Recirculation pump ready kit ready
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • For use outdoors with freeze protection up to -30 degrees
  • Recirculation pump ready kit ready.8.4 gal./min. at 35° F rise max
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • Robust Copper immersion heating elements with brass top increases durability and are
  • On demand, consistent and endless hot water
  • Simple installation – 3 foot electric cable included; bottom 1/2 inch NPT water connections
  • Durable Copper immersion single heating element, field Serviceable
  • External digital display – shows outlet temperature

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Rheem RETEX-13 Performance Self-Modulating 1.97 GPM Electric Tankless Water Heater

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Search only Rheem brand name
Rheem RETEX-13 Performance Self-Modulating 1.97 GPM Electric Tankless Water Heater

Current price: 299.97 USD


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Height: 4 Inches

Length: 14 Inches

Width: 9 Inches

Weight: 7 Pounds

  • Flow Rate: up to 5.9 GPM
  • Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • 54 A
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Low Nox Version
  • Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
  • Third party efficiency listed by AHRI
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • 94-Percent Energy efficient with stainless-steel condensing heat exchanger
  • Fuel Type: Natural Gas
  • For use outdoors with freeze protection up to -30 degrees
  • Recirculation pump ready kit ready
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • Threaded for easy replacement, simple installation, digital temperature display
  • Simple installation – bottom 3/4 inch NPT water connections
  • Durable Copper immersion three heating elements, field Serviceable
  • Most advanced self-modulation, adjust power to meet hot water demand
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • For use outdoors with freeze protection up to -30 degrees
  • Recirculation pump ready kit ready.8.4 gal./min. at 35° F rise max
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • Robust Copper immersion heating elements with brass top increases durability and are
  • On demand, consistent and endless hot water
  • Simple installation – 3 foot electric cable included; bottom 1/2 inch NPT water connections
  • Durable Copper immersion single heating element, field Serviceable
  • External digital display – shows outlet temperature
  • Brand New in box. The product ships with all relevant accessories

More Info

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