The Mega-Stor is a stainless-steel indirect water heater which provides abundant domestic hot water utilizing energy provided by your boiler. With a stainless steel, smooth surface coil that transfers heat throughout the tank, the Mega-Stor is capable of recovery rates well in excess of a typical gas, electric or oil water heater. The two inch thick layer of polystyrene foam insulation keeps the water in your Mega-Stor hot for hours during stand-by periods. The Mega-Stor is also equipped with a removable cover for ease of inspection. Mega-Stor has a limited lifetime warranty