Heater for boiler 1500 W - LAVABO 5/4 inch 40.401 - without thermostat

NOTE REGARDING THE SELECTION OF HEATERS ACCORDING TO WARRANTY CONDITIONS

According to the recommendations and warranty conditions, the power selection relative to the tank capacity should be calculated with a minimum coefficient of 18 Watts/liter.

A properly selected heater will heat the capacity in about 2-3 hours and then calmly regenerate the insulation of the heating coil, waiting for the next heating cycle. For heaters with too low power, not compliant with the 18 Watts/liter recommendation, operation causes continuous work and overheating of the heating element and controller contacts, which leads to premature damage.

For proper heater operation, always use the highest possible heater power according to the above formula / coefficient of 18 W/liter

Optimally 1500 W for tanks up to 80 liters (80 liters x 18 Watts/liter = 1400 W heater power)

                           2000 W for tanks up to max 120 liters

                           3000 W (STANDARD version) for max 160 liters

Larger tanks or commercial use should use 3000W heaters LONG version, according to the following:

For tanks above 180 – 300 liters, we strongly recommend (especially for photovoltaics) using a 3 KW heater, but in the LONG version