Double Coil Water Heater

These are pressurized vessels with enamel-coated hygienic inner surfaces, designed to transfer heat from two independent heat sources to domestic water through built-in heat exchangers (coils). This ensures the preparation of hot and hygienic domestic water efficiently and safely.

In RUSH double coil water heaters, the upper heat exchanger with a large surface area typically utilizes hot water supplied from a boiler or cascade system, while the lower heat exchanger can be connected to a solar thermal system. A closed circuit with circulation is established via a pump.

For temperature control, the unit includes thermostat inputs that regulate the pump operation according to the measured values, maintaining stable water temperature. By adjusting the inlet temperature and pump speed, maximum heating efficiency is achieved.

Additionally, the auxiliary electric heater connection allows the system to reach higher temperatures more quickly when needed.

RUSH double coil water heaters are pressurized vessels with enamel-coated hygienic inner surfaces, designed to transfer heat from two independent heat sources to domestic water via built-in coils. The upper coil typically uses hot water from boilers or cascade systems, while the lower coil can utilize solar thermal energy.

Available in capacities from 200 to 3000 liters, each tank is manufactured from high-quality carbon steel and hydrostatically tested for a standard working pressure of 10 bar (optional 6–16 bar). A closed-loop pump system ensures continuous circulation, and thermostat inputs regulate pump operation for stable and efficient heating. Inlet temperature and pump speed can be adjusted for maximum performance, while the auxiliary electric heater allows faster heating and higher temperature operation.

These units provide reliable, efficient, and hygienic hot water for residential, commercial, and industrial applications.