It has NEMA 1 rated galvanneal powder-coated steel enclosure for added protection and durability. The generator has Generac OHV engine that utilizes liquid propane or natural gas as its fuel. This engine consumes 73-Cubic-ft/Hour of natural gas at half load, 117-Cubic-ft/Hour at full load conditions and 31.6-Cubic-ft/Hour of liquid propane at half load and 51.6-Cubic-ft/Hour at full load conditions. It has one cylinder and provides 420-Cubic-cm displacement. This engine has a voltage rating of 240-Volts, current rating of 31.25-Amps with LPG and 25-Amps with NG at 60-Hz. It has low noise up to 69 dB at 23-ft normal operating load and exercise mode. This engine is controlled automatically. It measures 36-Inch x 27-Inch x 25-Inch. The standby generator meets cULus and ISO standards.