Pipe high efficiency heat sources to a well insulated, all stainless storage tanks. These storage tanks have four-inch to one-inch connections on top for easy installation. Two for cold and hot, and two for heat source in and out. Heat source in and out are hydraulically isolated from cold and hot water draws. The units are available in 30, 40, 50, 60, 80, and 115 gallons.

Manufacturer Name: Heat-Flo