Rheem® Tankless Water Heaters & Supplies

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Rheem RTG-84XLP

Rheem RTG-84XLP

Rheem Tankless Water Heater, Liquid Propane 199,000 BTU Max Direct Vent Whole House Residential/Commercial - Outdoor, 8.4 GPM

Our Price: $849.99
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Rheem RTG20236A

Rheem RTG20236A

Rheem Tankless Water Heater Natural Gas Commercial Conversion Program Chip for RTG-95DVN

Regular Price: $32.38
On Sale: $26.98
as low as: $25.09

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Rheem RTG-20149C

Rheem RTG-20149C

Rheem Tankless Water Heater 3" Single 90 Degree Elbow for Wall Venting

Regular Price: $51.99
On Sale: $36.50
as low as: $33.95

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Rheem RTG20006DN-1

Rheem RTG20006DN-1

Rheem Tankless Water Heater High Altitude Chip for RTG-74PVN - Natural Gas (6561-9840 Ft.)

Regular Price: $27.99
On Sale: $19.95
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Rheem RTG20006DL-1

Rheem RTG20006DL-1

Rheem Tankless Water Heater High Altitude Chip for RTG-74PVP - Liquid Propane (6561-9840 Ft.)

Our Price: $26.99
as low as: $25.10

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Rheem RTG20060

Rheem RTG20060

Rheem Tankless Water Heater Direct Vent Sweet Termination Kit - 13" to 17" Wall Thickness

Regular Price: $300.99
On Sale: $214.99
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Rheem MIC-K-16

Rheem MIC-K-16

Rheem Tankless Water Heater 16 Ft. Communication Cable

Regular Price: $23.04
On Sale: $19.20
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Rheem RTG2006EK

Rheem RTG2006EK

Rheem Tankless Water Heater High Altitude Chip for RTG-74XN - Natural Gas (3281-6560 Ft.)

Our Price: $21.99
as low as: $20.45

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Rheem RTG20214B

Rheem RTG20214B

Rheem Tankless Water Heater Liquid Propane Commercial Conversion Program Chip for RTG-95DVP

Our Price: $25.99
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Rheem RTG20214A

Rheem RTG20214A

Rheem Tankless Water Heater Natural Gas Commercial Conversion Kit for RTG-95DV

Our Price: $28.80
as low as: $26.78

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Rheem RTG20214C

Rheem RTG20214C

Rheem Tankless Water Heater Commercial Conversion Kit for RTG-95XN

Our Price: $25.99
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Rheem RTG20216A

Rheem RTG20216A

Rheem Tankless Water Heater Commercial Conversion Kit for RTG-84DVN

Our Price: $25.99
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37-48 of 58 products Sort by 
Rheem® is a well-known name in the world of heating and cooling products. Westside Wholesale is proud to carry dozens of Rheem products, including tankless heating units, tankless vent kits and installation supplies, remote thermostats, and more.

Rheem tankless heaters range from small units designed for a single sink to larger heaters capable of providing hot water for two to three bathrooms. The Rheem plumbing line of tankless heaters offers options for installation indoors or outdoors, as well as for natural gas, liquid propane, and electricity. With many available components for Rheem's tankless water heaters, contractors have the freedom to install the heating systems in a variety of locations, perfect for new construction or for improvised spaces (including areas where the tankless heating unit will replace an older water tank).

Rheem also offers many new and exciting products that allow digital automation to increase the efficiency and accurate usage of heaters, such as the Rheem Digital Remote Control Thermostat. Rheem offers a limited warranty for most of its products—check the individual product for more detail.