The control of the boiler power is ensured either by step switching or smooth. The cheapest models have several heating elements that ensure switching. It will be stepped, when one element is turned on — the power will be 25%, two — 50%, etc. D. Heat adjustment in hotel rooms in this case will be provided with thermostats on the heating batteries themselves. In expensive models of electric boilers, more smooth adjustment is possible, such boilers are equipped with rheostats, with which you can set the required boiler power smoothly.
