Water heaters HDW are used to heat the air in ventilation systems. Water heater HDW is closed lid, which allows inspection and cleaning of the heat exchanger.
Water heater HDW has two round spigot connection with EPDM gasket.
The casing is made of galvanized steel sheet. Coil and connecting duct are made of copper and exchanger fins are made of aluminum. HDW water heater can be installed in the air duct of both vertical and horizontal at any direction of air flow.