Case

Energy saving potential in 1970’s houses

There is an enormous potential for energy savings in houses from the 1970’ies. In this particular project, energy consumption is expected to be reduced by almost 70 per cent.

The Mikkelsen family, who live in Næstved, Denmark, have for 18 years had to cope with a heating bill of approx. 4,000 euro a year plus a very unpleasant, cold indoor climate. But no more! In 2007 their house was energy refurbished from top to toe.

Building year:1970s

Renovation year: 2007

In the 1970’ies house in Næstved, the following improvements have been carried out:

  • Insulating façades, foundation and ceiling
  • Renovating parts of the roofing
  • Renovating or replacing windows and outside doors
  • Replacing gas furnace
  • Installing a ventilation plant

“Ever since we bought the house, we have felt chilly every winter. And looking back, it seems incredible that we were able to put up with it for so long. Our walls were very cold, and when we lit a candle, it stood flickering in the draught. Throughout the years, we resorted to lots of stopgap measures, just to make things tolerable,” says veterinarian Torben Mikkelsen, who lives in the house with his wife and daughter.

The renewal of the house in Næstved has been extensive and does not only comprise energy refurbishment, but also an external renovation of the whole house. And this is why the Mikkelsen’s have raised a loan on their mortgage to finance the refurbishment. The savings on the heating bill, which will amount to approx. 2,700 euro a year, will go to paying the instalments on the part of the loan regarding the energy improvements of the renovation project.

“For the same monthly expenses we get a clearly improved indoor climate and a house at a higher market value”, Torben Mikkelsen says.

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