The HP130 pool and spa heater is designed to give you maximum heating at the lowest possible cost. The heater features electronic spark ignition so there are no pilot flames to blow out. The heat exchanger's all copper design maximizes heating and makes the HP130 very fuel efficient. Stainless steel waterways insure that this heater will not rust or corrode from pool chemicals. The connections to the heater come complete with polymer unions to easily hook up to existing plumbing. HP130 has a compact footprint to fit into almost any equipment area. Advanced controls allow you to set a desired temperature and the heater will automatically heat to that setting. The HP130 puts out 130,000 BTU per hour to quickly heat your above ground or small in ground. The unit is available in natural gas or propane.