Power gas-fired boiler : calculations and expenses

1 kW x every 10 square meters.m.

However, it should be understood that this scheme was created in Soviet times and is suitable for small buildings, with a warm attic, low ceilings and high-quality thermal insulation of walls and windows.Alas, this requirement correspond to very few homes.This technique does not allow for innovative building technologies, therefore, can not stand the other climatic conditions than were created in the USSR.

to make high-quality power calculation must also take into account a list of some conditions:

• climate - each region has its own specific weather.
• Overall - the area of ​​residential premises.
• Vnutriklimaticheskie - house warming.
• heat - the heat loss of the building.
• Quantitative - the amount of heat required for heating the water.

is noteworthy that in those houses where the ventilation is compulsory, the calculation takes into account the amount of energy required still air heating.For calculations it is convenient to use a special program:

Important!Buying gas boiler, power calculation must be done with a margin of 20% in the case a sharp temperature drop catches you by surprise.

It makes sense to buy an expensive and powerful boiler?

heating Modern technologies have automated systems that control the moderate consumption of gas.This saves you from unnecessary spending.But do not think that the payment capacity of the gas boiler is not needed, simply heating system with good technical characteristics and parameters of gas consumption.

The correct choice of the term of his robots is dependent heating equipment.If the thermal capacity will be increased without reason, then:

• you will need to re-buy, to outbid the new elements of the system (after the previous break);
• efficiency, of course, will decrease;
• faults and rapid wear of the parts provided;
• presence of condensation in the chimney and nothing good can not be held, etc.etc.

standard gas boilers for homes

If a typical residential house need to install a new gas boiler, power calculation is not difficult.Effective formula that takes into account the size of the ceiling (no more than 3 meters).

MC = S * CMD / 10,

where MK - boiler output in kW;

S - the total floor area in square meters;

CMD - specific capacity of the boiler, for every 10 square meters.M.

last result is determined depending on the climatic conditions and the average looks something like this:

• Southern regions (warm) - 0.6 - 0.9 kW,
• average band - 1.0 - 1.2 kW,
• the suburbs - 1.2 - 1.5 kW,
• North - 1.5 - 2.0 kW.

Important!The formula shows how to calculate the power boiler to heat your home only.If you double-pressure boiler, then you should add to your calculations for another 25%.

As the ceiling height is taken into account?

to make the most honest payment for private homes with individual project, you must use this formula:

MK = Qt * Kzap,

where MK - boiler output;

Qt - the structure of the heat loss in the forecast, kW;

Kzap - safety factor of 15-20%.

main figure in this formula - a measure of heat loss forecast, given by Eq.

Qt = V * Pt * k / 860, where V - volume of the room, cbm .;

Pt - a difference of external and internal temperature in ° C;

k - scattering coefficient depending on the insulation of the premises and the type of building.

For small buildings with good insulation calculated heating power may be small, but not the fact that you will be able to find the required low-power boiler for sale.In this case, you can buy gas boiler, power calculation which corresponds to high requirements, but do not run it at full strength.It is only important to remember that it is better with the problem of heating of auto cope automatic systems, therefore it is necessary to invest in "smart" electronics.

noteworthy that some manufacturers prudently approached the issue of calculation and established themselves in their instruments a special function calculator that allows you to make the necessary data to calculate and determine the capacity of the boiler.

Examples of these calculations can be seen in the table below.

When should involve experts?

Structures high complexity require careful planning and calculation of power equipment, and to cope with this task can only engineers who are able to take into account in the design and different ceiling heights, and the presence or absence of floor heating, and pool available, etc.etc.

Good luck counts and lucrative sums on a calculator!