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Evaluate the power of a condensing boiler

Before replacing your old boiler with a condensing model, you need to calculate the power required to meet your needs. To achieve this, multiply the area (in m2) by the average height of the volume to be heated. Then apply a coefficient that varies according to the level of insulation of the house: 35 for good insulation, 45 if it is average and 55 if it is bad.

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