Hamworthy - Model DR-SA -Dorchester Fully Automatic, Single Tube Direct Gas Fired Water Heaters

The DR-SA range consists of two models with continuous outputs of 309 litres/hour and 352 litres/hour, based on a 44C temperature rise. Storage capacities are 278 litres and 372 litres respectively. Two or more water heaters can be installed in a modular configuration where there is demand for larger loads. Fitted with an atmospheric burner with fully automatic ignition the DR-SA is suitable for firing natural gas or LPG. The water heaters incorporate a fully electronic gas valve, spark ignition system, control and high limit thermostats, a lockout indicator light and reset button. A further thermostat is located on the draught diverter to detect flue gas spillage, to shut down the burner in the event of a down draught condition.