The operation of any heating system is based on one way or another way of transferring thermal energy from an energy carrier to indoor air. For this, various types of fuel are used - gas, coal, firewood, etc. But is it necessary to do the installation of pipelines. In the absence of such an opportunity, convection heating of the house is equipped: reviews, batteries, radiators. This is not a new method of heating air in a house. But this needs to be described in more detail.
Features of convector heating system
The very first convection heating batteries are traditional stoves. Thermal energy from their surface is transferred to the room. In this case, natural convection of air flows occurs - with a higher temperature they rise up, creating a circulation of heat.
However, the efficiency of their work remains extremely low - the efficiency indicator did not exceed 25-30%. Therefore, convection heating boilers have been developed that transfer energy more efficiently. To do this, their design provides for additional convection surfaces that improve circulation, and accordingly - the heating rate of the house.
How is convection heating at home different from ordinary?
- Lack of pipelines. This reduces the initial costs of organizing heating;
- The ability to install local heating points - autonomous radiators. Most often this is done for cottages or houses with a small area, or apartments;
- Operational regulation of energy flow to optimize the temperature regime.
The disadvantages of such a system include the complexity of the organization for buildings with a large area. Even having installed convection water heating, consisting of autonomous radiators, it is problematic to make a single control unit. But there are exceptions - modern gas convection heating boilers. These are common models that can be installed in piping systems. The selection parameters for such boilers are the same as in the design of traditional heating.
The amount of generated energy in convection-type heating appliances directly depends on the area of the heat exchanger. It is necessary to pay attention to this first of all.
Converter type boilers
Installation of convector-type boilers is relevant only if it is necessary to maintain a comfortable temperature in a small room - up to 20-30 m². When choosing a particular model, you need to pay attention to its body - it must have additional panels or pipes through which air passes. The more efficient the convection heating system, the more air will flow through these structures.
Solid fuel heating boilers
One of the most popular convection coppers of overcoming at present are Bulleryan furnaces. They consist of a cylindrical body, on the outside of which convection pipes pass.
Burning, solid fuel transfers the maximum amount of warm energy to the walls of the structure. This leads to heating of the air in the pipes, as a result of which its circulation begins. There are two ways to regulate the temperature: by reducing the volume of the fuel filling or by reducing the flow of air through the ash pan.
However, it is not always possible to install this boiler in a residential area. Analyzing reviews of convection heating, where it is the main element, one significant minus can be identified - large dimensions.For industrial or technical buildings, it will be optimal, since dimensions in this case are not the main priority when choosing. If this is important - you can install convection electric heating. It is more expensive, but the radiators are much smaller.
To select a suitable boiler model, you need to pay attention to the following parameters:
- Its rated powerkW It must be borne in mind that manufacturers give maximum performance;
- Dimensions. In addition to the size of the structure, you will need a place to install it. The most efficient operation of a convection heating boiler will be in the absence of barriers on the sides. Those. air must pass through pipes without hindrance;
- Weight. The average weight for an 18 kW model is 130 kg.
The cost of a convection heating device directly depends on its power. The table below shows the average prices for Russian-made Bulleryan boilers.
| power, kWt | Sizes, cm | Weight, kg | price, rub. |
| 6 | 70*48*69 | 57 | 7500 |
| 11 | 75*56*83 | 108 | 9730 |
| 18 | 85*59*97 | 130 | 11315 |
| 27 | 90*64*112 | 169 | 14970 |
| 35 | 96*73*129 | 215 | 18700 |
According to owners of converter heating, one fuel tab is enough for an average of 8 hours of continuous operation.
The minimum thickness of the boiler body metal must be 1.5 mm. The best option is cast iron. However, the cost of such models is 50-70% more expensive than steel.
Gas heating boilers
Gas convection heating boilers are installed for systems in which pipelines are provided. They do not provide air heating, but transfer the energy of gas combustion to the coolant - water in the pipes.
A feature of convection water heating is the use of an intermediate medium (coolant) for heating air. In this case, the boiler body is not a heat source. Therefore, the dimensions and weight of the structure are much smaller than those of Bulleryan furnaces or the like.
The specifics of the organization of such a system is as follows:
- Mandatory installation of highways in all rooms;
- Possibility to choose models with 2 heat exchangers. One of them is intended for hot water supply;
- Registration of permits before connecting to the gas pipeline.
However, the installation of such a boiler has a number of advantages. One of them is the duration of the autonomous operation of convection heating at home. In most cases, the control unit has several modes, as well as the ability to connect to external temperature sensors to automatically control the power of the boiler.
The cost of gas boilers is affected by their equipment. Models with a circulation pump and expansion tank have a higher price.
Radiators and gas convectors
If, to maintain the temperature in the room, point heating devices are enough, it is recommended to install gas or electric heating of convector type. They consist of a heating element, a control unit and a system for removing combustion products (gas models).
Electric heating convectors
This is the easiest and fastest way to make heating in a house or apartment. The heating element is an electric heater, the temperature of which is transmitted to the device body. Using a system of slots, air freely penetrates into the radiator, creating convection.
The most common models for convector heating systems have a tubular heater with metal plates. Thus, the heating area increases. But the reviews speak of one drawback - during operation, extraneous sounds are heard. The reason for this is the expansion of metal plates.
To install convection heating batteries, the following conditions must be met:
- The cross-section of the wiring should be designed for the maximum power of the device;
- The installation of a separate RCD is recommended to prevent a short circuit;
- For safety reasons, you must not leave the convector on while there are no people in the house.
You also need to consider the high cost of electricity. Therefore, in the presence of a gas main, convection heating batteries with a burner are chosen.
The cost of electric convectors ranges from 4000 to 15000 rubles. It is important to pay attention to the characteristics of the control unit, protection against water and the presence of automatic shutdown when capsizing.
Gas heating convectors
Economical heating of a convector-type house can be done by installing gas models. They consist of a burner that is not located indoors. Air inflow and exhaust products are carried out through a coaxial chimney.
Unlike convectors for electric heating, gas models are large. This is due to the presence of a gas burner and a sufficiently large heat exchanger. To improve convection, a fan is installed on some models to increase air exchange.
The average cost of gas convectors is 8000-12000 thousand rubles. Despite the large number of foreign brands, they prefer to purchase domestic counterparts. They are better adapted to special operating conditions.
In what cases is the installation of convection heating at home justified. Reviews about it, the high cost of batteries and radiators indicate a balanced approach when choosing such a system. In most cases, it is relevant for small rooms and production halls where it is necessary to make zonal (selective) heating.
In the video material you can familiarize yourself with the installation features of gas convectors:
