The electric storage water heater (also called hot water tank or electric cumulus tank) is one of the most comfortable, economical, and easy to use solutions in terms of hot water production and water treatment for a home. The water heater is considered a centralized element for producing hot water necessary for a house, an apartment, an office, and a business.

Thanks to this tank, it is possible to draw water from various draw-off points simultaneously without a hot water problem. The tank of the electric storage water heater can make it possible to have large quantities of hot water available, depending on the tank’s capacity. Comfort is, therefore, the essential advantage of the storage water heater.

The electric cumulus is entirely silent, does not give off combustion products. It is possible to install it without constraints in different parts of a building with different installation types: vertical wall, horizontal wall, vertical wall on a tripod (or quadripod), on plinth (the water heater rests directly on the ground). It is a product that is generally easy to install, whether in damp rooms (where the installation will be regulated) or in dry rooms.

Water Heating Control

To control the heating and water temperature in the water heaters, a thermostat detects if the tank’s water temperature is below the temperature setpoint requested on the thermostat. If so, it closes the electrical circuit to the water heater so that the resistance is energized. It then heats the water until the thermostat detects that the desired temperature has been reached: the electrical circuit opens, and the resistance is de-energized. Once the hot water has been used (and has been replaced by cold water) or has had time to cool down by losses, the resistance automatically turns on again thanks to the thermostat, closing the electrical circuit. The water is thus continuously heated.

The advantage of the storage water heater compared to other electric water heaters is that it can be programmed/controlled to heat only during off-peak hours (with an HP / HC tariff), which reduces the significant impact on the energy bill. However, it is also possible to activate it manually to heats up during peak hours if necessary (via the HP / HC contactor on the electrical panel).