A vacuum valve must be installed on the cold water inlet in either a vertical or horizontal position to assure warranty coverage a Marathon water heater. Without a vacuum valve properly installed, a break in the main supply line can create a vacuum within the water heater and irreparably damage the inner tank.

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A vacuum valve must be installed on the cold water inlet in either a vertical or horizontal position to assure warranty coverage a Marathon water heater.

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The tekmarNet 552 Thermostat controls one stage of heating in your hydronic system. This touchscreen thermostat is a simple, and efficient, way to manage the ...

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Marathon water heater models changed in March of 2009 to require a different vacuum relief valve. Now there are two different kinds of valves available depending on when your water heater was manufactured. Please see model numbers and descriptions below:

Rheem’s highly efficient Residential Hybrid Electric Water Heater is offered in 40, 50, 65 and 80-gallon sizes to fit your needs.

Learn more about the Detailed Specifications General Brand WATTS Type Type Other Additional Information Date First Available May 29, 2020.

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