TanklessWater Heaters

Enjoy Continuous Hot Water

Rheem tankless water heaters provide the comfort and convenience of having a continuous supply of hot water. Our gas models are great as a hot water solution for homes with busy families, homes with luxury bathrooms and vacation home.

If you are looking for a hot water solution for a single faucet or shower, please see our electric tankless products below.

Defining a new standard in quality.

Our ProfessionalTM Line is a complete range of hot water solutions with exclusive features and professional grade quality. These products are available exclusively through our contractor partners.

Professional

Prestige Series Models

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Professional Prestige Series 95 Direct Vent Indoor
  • Vents with Standard PVC – lower cost, readily available, and easy to install
  • 94% efficient
  • Built-in Condensate Neutralizer – reduces installation cost and time
  • ENERGY STAR® rated
  • Industry-Best Low Activation Flow Rates – provides more fixture options, especially low-flow faucets and shower heads
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Professional Prestige Series 95 Outdoor

  • Vents with Standard PVC – lower cost, readily available, and easy to install
  • 94% efficient
  • Built-in Condensate Neutralizer – reduces installation cost and time
  • ENERGY STAR® rated
  • Industry-Best Low Activation Flow Rates – provides more fixture options, especially low-flow faucets and shower heads
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Professional Prestige Series 90 Direct Vent Indoor
  • Vents with Standard PVC – lower cost, readily available, and easy to install
  • 93% efficient
  • Built-in Condensate Neutralizer – reduces installation cost and time
  • ENERGY STAR® rated
  • Industry-Best Low Activation Flow Rates – provides more fixture options, especially low-flow faucets and shower heads
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Professional Prestige Series 90 Outdoor
  • Vents with Standard PVC – lower cost, readily available, and easy to install
  • 93% efficient
  • Built-in Condensate Neutralizer – reduces installation cost and time
  • ENERGY STAR® rated
  • Industry-Best Low Activation Flow Rates – provides more fixture options, especially low-flow faucets and shower heads
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Professional Prestige Series 84 Direct Vent Indoor
  • Continuous hot water, energy saving and compact, space saving design
  • Self Diagnostic System
  • 92% efficient with stainless steel condensing heat exchanger
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Professional Prestige Series 84 Outdoor
(Not Available in Canada)
  • Continuous hot water, energy saving and compact, space saving design
  • Self Diagnostic System
  • 92% efficient with stainless steel condensing heat exchanger

Specialty Models

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Tankless Electric RTE 27
(Not Available in Canada)
  • 240 Volts - 27KW
  • 5.0 GPM maximum flow rate
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Tankless Mid-Efficiency 95 Direct Vent Indoor
  • 11,000 - 199,900 BTU max.
  • 9.5 gal./min. at 35° F rise max.
  • 7.4 gal./min. at 45° F rise max
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Tankless Electric RTE 18

(Not Available in Canada)

  • Just right for bathroom renovations or additions
  • 240 Volts - 18KW
  • 5.0 GPM maximum flow rate
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Tankless Mid-Efficiency 95 Outdoor
  • Indoor direct vent and outdoor models
  • 11,000 - 199,900 BTU max.
  • 9.5 gal./min. at 35° F rise max.
  • 7.4 gal./min. at 45° F rise max
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Tankless Electric RTE 13

(Not Available in Canada)

  • Great for single shower applications
  • 240 Volts - 13KW
  • 4.0 GPM maximum flow rate
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Tankless Mid-Efficiency 84 Direct Vent Indoor
  • Indoor direct vent and outdoor models
  • 11,000 - 180,000 BTU max.
  • 8.4 gal./min. at 35° F rise max.
  • 6.6 gal./min. at 45° F rise max.
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Tankless Electric RTE 9

(Not Available in Canada)

  • Perfect for installations under a kitchen sink
  • 240 Volts - 9KW
  • 3.0 GPM maximum flow rate
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Tankless Mid-Efficiency 84 Outdoor
  • Indoor direct vent and outdoor models
  • 11,000 - 180,000 BTU max.
  • 8.4 gal./min. at 35° F rise max.
  • 6.6 gal./min. at 45° F rise max.
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Tankless Electric RTE 7

(Not Available in Canada)

  • Ideal for bathroom vanity with multiple sinks
  • 240 Volts - 7KW
  • 2.5 GPM maximum flow rate
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Tankless Mid-Efficiency 64 Direct Vent Indoor
  • Indoor direct vent and outdoor models
  • 11,000 - 150,000 BTU max.
  • 6.4 gal./min. at 35° F rise max.
  • 5.6 gal./min. at 45° F rise max.
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Tankless Electric RTE 3

(Not Available in Canada)

  • Designed for low flow single bathroom sink applications
  • 120 Volts - 3KW
  • 1.5 GPM maximum flow rate
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Tankless Mid-Efficiency 64 Outdoor
  • Indoor direct vent and outdoor models
  • 11,000 - 150,000 BTU max.
  • 6.4 gal./min. at 35° F rise max.
  • 5.6 gal./min. at 45° F rise max.