How does cold weather affect my tankless water heater?
A Rinnai tankless water heater features built-in freeze protection, so it will remain in operation in temperatures as low as -30℉. In order to use this feature, you must have both power and gas run to the unit. In addition, the pipes into the tankless water heater must be heat traced and insulated to protect them from freezing. A Rinnai-certified contractor or approved plumber will follow installation recommendations so your unit can operate optimally, even in cold weather.