The Natural Gas direct-fired L.B. White Guardian heater is designed to protect livestock producers' investments when the weather turns cold. Guardian livestock buildiNatural Gas heaters provide consistent, dependable heat that helps control your climate. L.B. White is the pioneer in direct spark heaters. Years of perfecting every aspect of their design has led to the reputation for reliability, durability & service ability. This 200 to 325,000 BTU/h heater features hot surface ignition, adjustable heat output, a sediment trap, integral gas regulator in the gas valve with a maximum inlet pressure of 1/2 PSIG. Power Cord is NOT included! The Gas valve includes manual gas flow shut-off. Electrical Supply is 130v/60hz/1ph, 1/2HP motor with 1100 RPM & is CSA Certified.