Sealed windows and their proper installation can significantly contribute to savings resulting from a noticeable reduction in the need to heat a house. Well-chosen windows keep heat inside the room, minimising heat loss, and also allow sunlight to penetrate the building in the form of thermal energy. How much can you save with sealed windows?
What should you look for when choosing windows?
Every window manufacturer will confirm that the Uw parameter is crucial when choosing windows. It determines the degree of heat transfer, and thus its escape from the room to the outside. The smaller the Uw value, the better the window insulates, the less heat is lost and the less heating is needed. Experts say that installing highly insulated windows can reduce energy consumption by up to 25%.
Amount of heat loss
The amount of money we save on heating depends on how much heat we keep in the room. The worst move is to install windows with a high Uw level. In Poland, the maximum degree of this parameter can be 1.1 W/m2K. Every manufacturer of insulating windows will advise against buying such products. It is estimated that they generate energy losses of up to approx. 33 kWh per month (depending on the outside temperature, of course). During the heating season, this translates into losses of 321 kWh.
How much can you save with draught-proof windows?
Draught-proof windows are extremely effective in preventing heat loss, which contributes to significant savings in your wallet due to the reduced need for room heating. The amount you can save by installing airtight windows with an insulating system connecting them to the walls depends on the type of heating fuel you use and its cost. On average, it is estimated that installing the most airtight windows can save around 150 euros during a heating season when heating with natural gas. Those who heat with fuel oil should save around 756 PLN, with electricity around 320 PLN, and with coal around 280 PLN.
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