Abstract: A water heater for a recreational vehicle includes an enclosure assembly, a water tank for holding water to be heated, a combustion system for heating water within the water tank, and a control system for operating the combustion system. The combustion assembly includes a burner assembly located within a sealed combustion chamber, an inlet duct communicating an external environment with the combustion chamber, an outlet duct communicating the combustion chamber with the external environment, and an electric fan positioned to draw combustion air through the inlet duct and force flue gas into the outlet duct. A portion of the outlet duct extends within the inlet duct so that both ducts extend through a single opening in an exterior wall of the recreational vehicle. The enclosure assembly is provided with a plurality of knockouts facing in different directions for forming an opening for the inlet and outlet ducts.

Abstract: A recreational vehicle water heater includes a tank for holding water to be heated and a heating element to heat the water in the tank. The tank has an inlet port and an outlet port. A cold water supply conduit is in fluid communication with the inlet port. A mixing valve has a first inlet port, a second inlet port, and an outlet port. The outlet port on the tank is in fluid communication with the first inlet port of the mixing valve. A cold water mixing conduit is in fluid communication with the second inlet port of the mixing valve. The mixing valve is configured to regulate a flow of heated water through the outlet port on the tank and a flow of cold water through the second inlet port of the mixing valve to output a flow of water at a desired temperature through the outlet port of the mixing valve.