The main criterion when choosing a furnace for a bath is power. With its shortage, the room will heat up for a long time and cool down quickly, and the equipment will fail due to constant overloads in a short time. If the power is higher than necessary, then the temperature in the steam room will rise quickly, but the stones will not warm up, and balanced steam cannot be obtained. Therefore, choosing a heater you need to determine its size in advance.
What determines the size of the bath furnace
Power is not the only criterion when choosing a bath stove. There are many more factors that affect the size. These include the following:
- iron or brick oven;
- Type of fuel;
- firebox design;
- room layout and finishing options;
- what heating is used: cold or hot;
- type of heater: closed or open;
- duration of work on one tab of fuel.
Only the combination of all these parameters will correctly determine the real value of the structure.
How to correctly calculate the size of the sauna stove
The power of the heating structure depends on its dimensions. The higher this indicator, the more it is necessary to burn fuel, therefore, the volume of the furnace should also be appropriate. When calculating the power, the volume of the room is taken into account. What affects its heating? First of all, this is the ambient temperature and the quality of the thermal insulation of the walls.
On a note! For a bare log house without insulation, it is necessary to use an increasing factor.
Initially, the volume of the room is calculated. To do this, multiply its length, width and height. The resulting value is divided by two and we get the conditional number of kilowatts required for heating.
In addition, it is required to heat the stones for the steam room, water for washing. In this case, part of the heat will fly out into the pipe. Therefore, the estimated number of kilowatts should be multiplied by 2.5-3. This is a calculation option for the case if the walls are insulated in the steam room, and it is not combined with the washing.
If the log house is bare and there is no thermal insulation, then we multiply the obtained value by another 1.5.
Important! Such calculations are very approximate, since there are no exact coefficients.
Now you can calculate the volume of the furnace in liters. For this, the power must be divided by 0.5 or 0.6. To find out its linear dimensions, you need to extract the cubic root from the resulting value. After the calculations, it is not difficult to imagine the dimensions of the heating unit itself.
What is the optimal ratio of the size of the sauna stove and the room
For optimal air heating, the parameters of the bath furnace should be as follows:
- the ratio of the size of the furnace to the area of the heated room is 1:50 or 1:70;
- the depth of the furnace hole is 1: 2 or 2: 3;
- the volume of the furnace to the cross section of the chimney should be in a proportion of 1:10.
The most common sizes of bath stoves:
- Power is 16 kW, the size of the firebox is 55x55 cm. They are used in rooms with a volume of 20-22 m ³. The height of the heating unit is from 89 to 143 cm. The capacity of the heater is from 60 to 150 kg of stones. Such a furnace, with the same power, can produce a larger amount of steam.
- Power is up to 28 kW, the size of the furnace opening is 63x63 cm. With similar volumes of the furnace, it will take an hour and a half to heat a steam volume of up to 35 m³. The height of the furnace is from 98 to 158 cm with a loading of stone from 70 to 170 kg.
- Power 40 kW, furnace size 73x73 cm, heater capacity - 250 kg. Able to heat rooms up to 50 m ³. This unit allows you to steam for six hours without additional fuel loading.
What should be the size of the metal bath stove
The range of metal heating units for a bath in the modern market is great. Usually these are steel or cast-iron structures, which are wood, gas, electric. When buying a finished stove, you do not need to make any calculations. The manufacturer did it for you. The passport indicates the power of the device, dimensions and the recommended volume of the room.
For a Russian bath, depending on the model, the sizes vary: length from 400 to 680 cm, depth from 415 to 900 cm and height from 700 to 1600 cm.
What should be the size of a brick oven for a bath
Brick structures are more diverse in terms of volume and design. What you need to remember when laying such a furnace is the standard size of red brick, which has dimensions (250 x 120 x 65 mm). The base is usually laid out in 3.5 by 4 bricks (89 x 102 cm) or in 4 x 5 bricks (102 x 129 cm). The height excluding the pipe is 168 or 210 cm.
Most often, the water tank is mounted in the oven immediately.
Practical tips on how to choose the size of the stove for the bath
There are several key factors to consider.
- The most important thing is that the dimensions of the heating unit correspond to the size of the room. For a small steam room, a compact model should be preferred, this will protect against contact with a hot surface and protect against burns.
- The design must be thought out in advance to facilitate the work with heating elements and to be able to adjust the temperature.
- The power should be sufficient for a good heating of the room and the formation of steam.
- To exclude the possibility of spontaneous combustion, it is imperative to comply with all fire safety rules regulated by SNiP 41-01-01.
The dimensions of the sauna stove are an important aspect that you should pay attention to. Responsibly approach the manufacture of this element, and your bath will become a place of better relaxation.
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