Today, the presence of a small country house or cottage is no surprise to anyone. Often, the dacha is used by its owners only in the warm season. If visits are planned in the winter, then the developer is faced with the problem of heating their own property. What heating scheme for a summer house can be applied?
Pulling a gas pipe is expensive and not always advisable. There is often no desire to make a stove or use solid fuel equipment due to difficulties with kindling and low automation of appliances. It remains to heat the cottage with electricity. Creating water heating with an electric boiler is also a troublesome task, and fan heaters are not always effective. One of the simplest (and therefore popular) ways to heat country houses is convector, which will be discussed in this article.
Purpose and design
An electric convector is a heating device designed to heat air in small rooms. The design of this device is ingeniously simple and simply ingenious. The convector consists of:
- A metal case (usually aluminum) in which two grilles are provided. One at the top of the device and one at the bottom.
- Dry heating element. For greater efficiency, it is made with ribs.
- Automation unit, which includes a thermostat and a room temperature sensor.
The heating element heats the air inside the case. According to the laws of physics, it rises up and enters the room through the grate in the upper part of the case. Its place is occupied by cooled air masses that enter the device through the lower grille.
This movement of air masses is called convection (hence the name of the device). Thanks to convection, the circulation of air masses in the room is created, and therefore its uniform heating.
Important! The simplest design of the convector is described above. Some models are equipped with a built-in fan to increase the speed of heating the room.
Advantages and disadvantages
Despite the high cost of electricity, it makes sense to create electric heating for a country house through the use of convectors.
- The device is ready for use immediately after connecting to the household power supply.
- Does not require complex installation work.
- For the arrangement of heating a country house or a summer residence with convectors, no permits and approvals are required.
- The device does not have high inertia (quickly heats the air in the room).
In addition, electric convectors are easy to use and do not require maintenance. But the main advantage (in the opinion of most of our compatriots) is the relatively low cost of these devices.
Why is the convector method of electric heating for summer cottages so popular? The fact is that all other heating devices (including boilers, stoves, IR emitters and fan heaters) require human participation. Electric convectors can work constantly and without supervision. Thanks to the thermostat, you can set the device to maintain the minimum allowable temperature in the country house, preventing its premature destruction and high energy costs.
Varieties of electric convectors
On the modern market of climate technology, these heaters are of three types:
Wall models are recommended to be installed under the window opening. Moreover, it is necessary to free up space in such a way that nothing interferes with convection. Floor devices, most often, are equipped with wheels, which makes them mobile without reference to the place of use. The third type of devices can be used both in floor and wall mounting options.
Structurally, all devices are the same, but depending on the model, there are some differences in the automation unit. Most modern convectors are equipped with a remote control, which makes the use of this device more convenient. Some models are equipped with a timer and can only work for a set time, some allow you to connect an external room thermostat and are equipped with a temperature control function. All this allows you to use electricity more economically. It is these wall-mounted economical electric heating convectors for summer cottages that are most in demand among our compatriots.
What to look for when choosing a device
Today, specialized stores offer the widest selection of electric convectors from more than two dozen foreign and domestic manufacturers. And this is not yet taken into account devices from the Middle Kingdom, whose brands quickly occupy leading positions in the global market for climate technology. Apart from the brand name, what should I pay attention to when buying this instrument?
- Supply voltage. For heating a country house, it is best to choose devices powered by a 230 v / 50 Hz household electrical outlet.
Power. The passport for any convector indicates how much electricity it consumes per hour. The more — the higher the cost of paying bills. However, a powerful device will quickly warm up the room to the desired temperature.
Advice! Experts recommend choosing the power of the convector according to the heat loss of the room.
Functional. The more functions, the more opportunities this device provides to the owner.
Advice! Today, in order to raise the cost, many manufacturers equip convectors with completely unnecessary functions, for example, self-diagnosis or light indication at different temperatures. This functionality does not make the operation more convenient and safe, but significantly increases its cost.
- Dimensions. Everything is simple here: the larger the area of the heated surface (yes, it is heated by the air that is inside the case), the more efficient the convector is.
- Electronic or mechanical control. Devices with electronic control, display and indication of modes are more convenient than mechanical ones, but have a higher cost. You choose.
And the last thing you should pay attention to when choosing this device is its efficiency. Most manufacturers focus on the high efficiency of their models. In fact, all electric convectors, regardless of model and brand, have an efficiency of at least 93%.
Calculation of the number of electric convectors
How to calculate how many electric convectors for heating a summer house are needed to create and maintain a comfortable temperature?
The number and power of the convector can be determined in several ways:
- Calculate the heat loss of each room. The power of the device must correspond to the value obtained.
- Make calculations taking into account the volume of the heated room and the degree of insulation of the building.
Let’s say right away: the first method is the most accurate, but rather complicated. It is necessary to calculate (using special formulas) the heat loss of walls, ceiling, floor, glazing, and then add up the data obtained. This is a calculation method for one room. Repeat for each subsequent calculation.
In the second method, you need to calculate the cubic capacity of the heated room (multiply the area by the height of the ceilings), after which the resulting value is multiplied by the recommended power, which depends on the degree of thermal insulation of the building.
20 W — building, made in compliance with the necessary standards of thermal insulation.
30 W — brick house with insulated floor and attic.
40 W — SIP panel house
50 W — not insulated building.
Advice! For ease of calculation, you can use a simplified method, where for every 10 m2 area of the heated room requires 1 kW of heat generator power.