Few country or private houses can boast of being connected to the main heating system.
This is what an electric boiler looks like for heating a private house
In the vast majority of cases, the care of choosing and designing heating systems in such dwellings falls on the shoulders of their owners. There are a lot of options to choose from, but many of them also depend on external conditions. So, the lack of gas supply does not allow building a heating system based on gas boilers.
Liquid fuel systems require strict safety standards and special qualifications for installation and operation. In this case, the purchase of an electric boiler will be a reasonable choice for heating a private house. Modern industry produces a lot of modifications of such devices for any operating conditions.
Content
- Types of electric octoles for heating private houses
- The main elements of electric boilers
- The principle of operation of the electric boiler
- What is bad and what is good in electric boilers?
- How to choose an electric boiler for heating a private house and calculate the required power.
- How to install an electric boiler in a private house yourself (diagram)?
Types of electric octoles for heating private houses
In order to understand what kind of electrically heated boiler can become the basis for the construction of a heating and hot water supply system in your home, you need to understand their fundamental structure.
The main elements of electric boilers
Regardless of the power of the electric boiler and its main purpose, it consists of the following main elements:
- The body, which serves as a container for all the components.
- Heat exchanger, which serves to transfer heat from the heating element to the heat carrier tank,
- Control, control and adjustment blocks.
A number of models of electric boilers, in addition, may have built-in circulation pumps to ensure the movement of the coolant, valves that redirect its flows.
A modern electric boiler is a high-tech device that heats flowing water with maximum efficiency, while operating in a completely autonomous mode. Even a child can operate such equipment - it is so safe and simple. Also, modern electric boilers have a fairly high efficiency, which will allow you to avoid extra bills for the electricity spent.
There is a great variety among the design of such electric heaters. They come in a variety of shapes, with wall or floor placement.
The principle of operation of the electric boiler
Almost all electric boilers operate on the same principle: a heating element is placed in the heat exchanger, which, after applying electric current to it, begins to generate heat. The coolant entering the heat exchanger (usually simple tap water, and in closed heating circuits water with special additives or antifreeze) is heated after contact with the heating element.
By the way, water can be heated not only by a traditional heating element (that is, a heating coil enclosed in a protective casing), but also by induction or electrode methods. However, it is electric boilers with heating elements that have received the greatest distribution, both among imported and among domestic models.
The power supply of heating boilers is also the most diverse. They can be powered by standard household 220 volts, or they can have industrial power supply with three phases of 380 volts. There are even modifications powered by batteries.
What is bad and what is good in electric boilers?
The undoubted advantages of electric boilers designed for heating private houses include:
- Very simple installation, which is accessible even to inexperienced users.
- If there is good electrical wiring in the house that can withstand the required current, such a boiler does not require additional electrical work. It is also extremely simple and water distribution when installing an electric boiler.
- Such a boiler does not need to be installed in a separate room. The security measures during its installation are quite gentle and it can be located in any utility room.
- Heating boilers powered by electricity differ for the better from their gas and solid fuel counterparts in weight and size.
- Such boilers are very easy to maintain, do not require constant cleaning and routine maintenance.
- The electric boiler does not emit combustion products and is an absolutely environmentally friendly device.
- The efficiency of modern electric boilers reaches 98 percent, which saves on heating.
But the operation of electric heating boilers carries some disadvantages:
First of all, a boiler powered by electricity is very critical to the quality of the electrical wiring in the house. Installation of such systems in old buildings may require additional costs for the installation of electrical wiring of the required section.
In some cases, the energy consumption of a heating boiler can lead to additional costs, especially in areas with high electricity tariffs.
How to choose an electric boiler for heating a private house and calculate the required power.
In order to correctly choose the model of an electric boiler for heating and hot water supply of your home, you first need to determine the required power of the electric boiler. On sale are both modest wall-mounted electric boilers with a capacity of 2.5 kilowatts, and stationary installations, the effective power of which is measured in tens of kilowatts.
To calculate the required power of the electric boiler, you can use a fairly simple formula - divide the area of \u200b\u200bheated premises by 10. The resulting figure will show the required power of the electric boiler in kilowatts. So, if you plan to heat a house with an area of 90 square meters using a heating electric device, then the minimum required power of the electric boiler will be 9 kilowatts.
Such factors as the material from which it is built, the degree of insulation and outdoor climatic conditions will significantly affect the figure of electricity consumption for electric space heating. All this can give significant adjustments to the required power. Automation of the heating process can also significantly reduce energy consumption - maintaining several temperature modes, automatically switched by a timer.In this case, the heating will not provide maximum heating during your absence, but only maintain the minimum required temperature level.
The cost of electric boilers
The price range for heating electric boilers is as wide as their model range. The price of such devices depends both on the power and on the implemented functions. In addition, the final cost of installing an electric heating system is significantly affected by the purchase of additional equipment.
A few thousand rubles cost a small wall-mounted device that can provide an acceptable temperature in a small country house, but for an apartment building the price of such equipment will already be several tens of thousands of rubles.
How to install an electric boiler in a private house yourself (diagram)?
Modern electric boilers, despite all their high technology, are fairly simple devices to install. A schematic diagram of the installation of a typical electric heating boiler is shown in the figure.
However, as the design of the boiler becomes more complex, the inclusion of additional circuits in the heating system, the installation of such devices becomes more complicated. Developed systems include not only heating circuits (of which there may be several according to the number of rooms in the house), but also a hot water supply circuit. Each circuit can be equipped with individual temperature sensors, drain and shut-off valves, inlet filter for heating water, circulation pumps.
Therefore, the installation of a heating system based on an electric boiler in a private house must begin with a detailed project.The project should reflect the required power of heating electrical equipment, calculate the required number and length of pipelines for organizing the circuits of heating and hot water supply systems, as well as all peripheral equipment.
Important!!! If you start installing a heating system without first assessing the power consumption and developing a project, you can make a critical mistake and end up with either a cold house or excessive electricity consumption. In this case, you are unlikely to save! Any mistake in miscalculations will hit your pocket hard!
After drawing up the project and calculating the power, an audit of the power supply system is carried out - if necessary, new wires are laid, a separate emergency switch is placed in the switchboard.
In the future, the installation of a heating and water supply system is carried out according to the general rules for the construction of such systems. With self-assembly, at least at the stage of calculation and drafting of the project, we recommend that you use the advice of specialists.
Installation diagram of an electric boiler for heating a private house: a step-by-step video