How to prepare your heating system for the summer

As the weather turns warmer, and you don’t feel that the heat from your radiators is needed anymore, you should turn off your heating system. For many people the 15th of May is the right time, while others find it more appropriate to wait until early June. Regardless the time there will be energy savings to obtain.

Turn off the cirkulation pump and the valve for the heat exchanger

To turn off your heating system for the summer you have to turn off the circulation pump for the radiator system and close the heating systems valve for the heat exchanger. You can see where these components are located on the chart below – be aware that not all district heating systems are alike.

If you have any doubts, contact your local utility or plumber/heating and sanitary engineer. They’ll be able to answer your questions.

Avoid problems with the circulation pump

For the circulation pump for the radiator system it isn’t appropriate to stand still for a longer period of time. For that reason the pump has to be turned on for ten seconds once a month. By doing this you’ll avoid the pump from sticking.

Pay attention to humidity/moisture

When turning off the circulation pump and the valve for the heat exchanger for the summer, it is important to ensure regular ventilation, as a lot of newer buildings are so well isolated that a lack of ventilation can result in humidity/moisture problems. This is especially relevant if the summer is relatively cold. If you normally have the heat turned on in the basement to avoid humidity/moisture you shouldn’t turn off your heating system unless you have found other ways to ensure a proper dehumidification. We generally recommend that you maintain a good indoor climate. Dew on the window panes can be an indication of humidity/moisture problems.

There is a risk of humidity/moisture problems if:

  • The summer is cold
  • You live in a newer, well isolated house
  • You don’t ventilate properly