Rules for installing and choosing an electric boiler for heating a private house

Reasonable approaches and key schemes for electrical generators of thermal energy explain the variety of power options for this type of heating equipment. In addition to the classification by the type of power supply network into 1-phase equipment and 3-phase boilers, thermal transformers are divided into the following types:

• Heating elements. The heating of the circulating carrier of thermal energy is carried out by means of the interaction of the liquid substance with thermoelectric heating components in the unit compartment.
• Electrode. The resistance of the saline solution (plays the role of an electrolyte) when alternating electricity is passed through it is accompanied by the formation of heat, which is transferred to the heating batteries (insulated floor covering).
• Induction. The selection of heat energy is carried out from a kind of converter with a primary and short-circuited (secondary) winding.

Energy Direction Conditions

The declared capacity of electric heating equipment for private housing ranges from 1,500 to 36,000 watts. Such a consumable load on the electrical network requires a special separate line to connect the transformer. Supply wires to it are laid directly from a reading device - an electric meter. For emergency or planned disconnection of the energy source, automatic switches are used, which simultaneously play the role of a fuse in case of a short circuit. It is allowed to connect to the mains with one phase of electric boilers with a capacity of up to 9,000 watts. Devices that are stronger in selection operate in 3 phases. It should be borne in mind that the unit must be connected to an electrical network that has a ground connection.

How to avoid excessive changes in media temperature

The use of electrical sources of thermal energy in water heating circuits is fraught with the threat of boiling of the coolant. In this regard, the equipment is almost not integrated into the gravitational heating structures of private housing, but is installed together with circulating pumps that promote the circulation of the carrier of thermal energy. During installation, a particular focus is on the thermostatic device responsible for activating / deactivating the heating device in automatic operation. The thermostat switch can also function as a barrier against excessive temperature drops in the unit when the power source is used as a back-up equipment.

Water heating safety

Uninterrupted circulation of the functioning of electric boilers, safe use requires installation in the heating circuit of special security structures. Such devices are installed separately or combined into a safety category represented by the following components:

• Automatic damper for the release of air streams from the water circuit.
• A protective (safety) flap in the form of a membrane to remove excessive pressure from the structure in case of failure of the thermal energy regulator or the appearance of a blockage in the pipes.
  
• Pressure gauge.A regulating measuring device required for external inspection and observation of the position of the functional environment in the circuit. In some cases, instead of this device, a combined device is used, reflecting, in addition to the pressure and temperature of the carrier of thermal energy. In an isolated (closed) heating scheme, it is imperative to install an expansion tank with a displacement that helps to compensate for the linear increase in the total size of the thermal energy carrier in the structure.

Connection to the water supply system of the technical equipment of the heating device

Long-term (seasonal) use of heating, one way or another, contributes to a decrease in the amount of liquid matter in the circuit. This phenomenon must be eliminated by connecting the water supply to the heating structure of the rooms. The connecting pipeline is usually equipped with a pair of ball valves. Between them, devices for preparing water are mounted (for example, a filtering device filled with polyphosphate salt). The filler chemically prevents the formation of salt deposits on the glowing components of the heating device. It should be noted that the efficiency of electrode heating units is determined by the amount of salts in the mixture for electrolysis. In such a situation, the preparation of water is accompanied by the procedure for enriching the liquid substance with salt. The order of installation of electrical equipment for heating is not signed by the control institutions. It is only required to agree on the provision of capacities for technical equipment if its consumption exceeds the limit specified in the agreement.

Optimization of payments for electric current, the price of which differs day and night, explains the improvement of the unit for tracking the consumed electricity. A metering device with 2 or more gradations of payments for electricity is installed. Every 30 days, the cost of heating with electrical equipment is significantly reduced when using urgent tariffication. The connection of an electric boiler to the heating structure can be done with your own hands, but if there is a desire to make the connection correctly, there are doubts about your own abilities, or there is simply not enough time for this, then this work should be entrusted to the installation companies that have been specializing in this kind of activity for a long time ... To be sure of the efficiency of the device itself, you should purchase electric boilers only from trusted manufacturers.