The Hayward Natural Gas heater for above ground pools and spas combines reliable technology with ease of operation for superior performance. Featuring an electronic, direct spark ignition system and an energy-efficient FireTile® line combustion chamber, the Hayward heater provides 100,000 BTU input for quick heating. An integral induced draft system makes this heater impervious to high wind situations. A one-piece copper header/ heat exchanger provides for leak-free performance. And a simple plug-in 120 volt electric cord is provided for simple installation.