Calculation of house heating online calculator


Our online calculator will help you in calculating the heating of premises, apartments or private homes.
The choice of capacity of the heating boiler for the apartment, private house or any other premises is a very serious matter, as the cost of the boiler rather big, and I need to carefully calculate and know what kind of power the right boiler for your housing area.
This calculator will help to calculate the approximate heat loss of your premises and the required heat output of boiler (kW), for this you need to specify: size of premises, type of Windows, insulation of the room, the ratio of the window area to the floor, the minimum temperature outside the premises, the number of walls facing outwards, property type over the calculated height of the room.
The boiler must be chosen with a little more reserve power than indicated in the result of the calculation of our calculator.

Indicate the area of the room:

Specify the type of window:

Indicate the wall:

Indicate the ratio of the area of windows and floor:

Indicate the outdoor temperature:

Indicate the number of walls facing out:

Indicate the type of room above the calculated:

Indicate the height of the room:


Heat loss kW:

Necessary boiler heat output kW: