Boiler tubular heating elements are compelling and consume a lot of electricity, creating a load on electrical connections. With use, connections may loosen. This causes them to heat up and can lead to melting, and even a short circuit. Therefore, when servicing the boiler, it is necessary to check, tighten, and, if necessary, replace the electrical connections to ensure the safe operation of the equipment.It is also necessary to check the integrity of the insulation of the heating elements, to avoid leakage of electricity to the boiler body. In case of leakage, the heating element must be replaced.* The cost of heating elements depends on the brand and model of the boiler, and is paid separately.