The MiniMax® 75 and 100 are compact, lightweight and efficient gas fired high performance aboveground pool and spa heaters that can be connected to schedule 40 CPVC or ABS pipe and have built-in tops. Quiet and dependable operation from the packaged burner system has been proven reliable in worldwide usage. The heat exchanger is constructed of premium non-corroding materials including bronze headers standard. Reliable direct-spark electronic ignition is available in propane or natural gas versions. The millivolt standing pilot version is for use where no convenient line power is present. All models measure 25-1/2" high, 15-1/2" deep and 19-11/32" wide.