ALSTROM - Model ASH-H - Hot Water Generator - Brochure

The Alstrom Compact Water Heater combines the advantages of both instantaneous and storage heaters. The package is constructed from a horizontal storage tank and a built-in shell & tube heat exchanger. Steam, hot water or heat transfer fluid passes through the shell of the heat exchanger. City water is heated by forced convection in the tubes of the heat exchanger and enters the storage tank. When the consumption of hot water stops, the heat losses are compensated by natural convection heat transfer between the external surface of the heat exchanger’s shell and stored water. In addition, the heated water is circulating between the heat exchanger and the storage tank by natural convection, eliminating the need for recirculating pump.