Swimming pool applications (everyday use): Pool size: up to 52,500 Gallons Heating rate: 1ºF/hr (pool water) Flow rates: 17.5 GPM (boiler side) / 114 GPM (pool side) *numbers based on a 122ºF difference between liquids. For occasional use (i.e. weekends), a unit with x2 times the BTU output is recommended to increase heating rate to 2ºF/hr.
