you need
  • 1. Roulette;
  • 2. calculator.
Guide
1
Determine floor area in square meters.To do this, multiply the length by the width of the room.All measurements are made in meters.To measure the accuracy of the calculations and the ceiling height.After obtaining the necessary mark all the numbers that affects the heat loss - the number of doors and windows, the location of the apartments, winter air temperature.You also need to find out the temperature of the coolant.
2
filter the type of heating radiators and figure out the power of a single section.To determine the average number of sections take the default value for the average climatic bands in the 1000 W at 1 mThis indicator is designed for rooms with a ceiling height of 3m, one wooden window and one door at a temperature of the coolant at 70 degrees.The resulting figure adapting to specific conditions.
3
Factors increasing the power applied in the case:
1. If the apartment is a corner or in the room 2 or more windows, the added factor of 1.8.
2. When the ceiling above 3 m power increases by a factor equal to the ratio of height to the actual normative.For example, with a ceiling height of 3.5 m ratio was 1.16 (3.5 3 = 1.16).
3. For the coolant temperature below 10 degrees degrees for each add about 17%.
4. If you connect the lower radiator (hot water flows from the bottom), enter an additional multiplying factor - an average of 8%.
5. At lower temperatures the winter the number of sections is increased from 1.5 to 2 times.
4
derating coefficients apply:
1. If you have plastic windows - up to 20%.
2. When the ceiling height of less than 3 m. The reduction factor is calculated as well as increase.
3. At higher temperatures the coolant every 10 degrees save 15-17% capacity.
5
resulting figure divide by the power of the radiator and get the desired number of sections.If you connect the lower radiator (hot water flows from the bottom), enter an additional multiplying factor - an average of 8%.In any case, if the supply (input-output) coolant is on the one hand, the installation of more than 10 sections of the radiator will not bring extra heat because of poor warm-distant sections.