RayPak Versa 130K BTU Above Ground Pool & Spa Heater Natural Gas 011493 has a polyester-coated, non-corrosive cabinet that is more durable than solventborne- and waterborne-coated metal cabinets. Every piece of sheet metal goes through a 7-stage wash system, making certain the powder paint has a perfect bond. Underneath the tough, yet beautiful finish you will find galvanized metal that offers superior rust prevention and years of durable service. Its wind-resistant design eliminates the need for fans to combat drafting problems. This gas heater features polymer headers, an all-copper-fin-tube heat exchanger, stainless steel tube sheet and 2" water connections. This RayPak heater is equipped with electronic ignition which requires external power (120VAC or 240VAC) and generates a pilot only when there is a call for heat. Units with this control system come with a 3 foot, 3 prong power cord. The burner tray is built to last and its innovative design allows for the easy removal of the tray and burners for servicing. A ceramic fiber combustion box keeps your heater running efficiently while eeping the outside jacket cool. By using this space-age material the heater will not retain residual heat after it is turned off, allowing it to be installed without the use of costly metal heat sinks. RayPak heaters are energy-smart and consistently achieve the highest efficiency ratings. P-M130A-EN-C.