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NorDan's new energy calculator

Heat loss from older windows can account for over 40% of the property's total heat loss.

By replacing windows and doors will achieve the following:

  • You'll save energy and money
  • Indoor temperature becomes more even and you can be more comfortable
  • Increases the value of housing
  • For better energy labeling of housing

By replacing old windows, insulate against the cold attic, crawl space and exterior walls, calculations from NVE / Multi Consult one can save 34 000 kWh. years.


Try our new energy calculator online

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