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 an energy-saving Direct Spark Ignition heater and can be controlled by a line voltage or 24V thermostat (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).