The SunStar Heating Products Ceramic Heater is ideal for spot heating or area heating of remote locations, farm buildings, shops, service areas, pump houses or other hard-to-heat spaces, providing both fuel efficiency of radiant heat and installation flexibility (not recommended for car washes). This is a Millivolt Standing Pilot heater and does not require an external power or electricity to operate, so it’s great for use during power outages. Requires Millivolt thermostat for SGM (sold separately). May require the following second stage regulators prior to the heater based on gas supply pressure: A regulator up to 2 PSIG line pressure or a regulator above 2 PSIG line pressure (both sold separately)