An installer plans to replace an outdoor wood-fired furnace with a new cordwood-gasification boiler with a rated output of 150,000 Btu/hr. The outdoor furnace is located about 100 ft. from the indoor mechanical room where the 1-in. PEX insulated underground piping joins the thermal storage tank. The installer plans to use the existing underground piping.
At the push of a button, Navien’s HotButton accessory activates the internal recirculation pump and gas-fired burner to heat up the water in the supply lines.