Radiator setting for seldomly used rooms?

Cianos

Hi there,
I'm wondering what the most cost effective way is to keep the radiators set in rooms that are rarely used?

ie should they be set low, or turned off altogether?

One room in particular has the longest radiator in the house, directly under the largest window, so it's important to have this set correctly.

Many thanks for your help!

Victor

What type of controls are on the radiators? If they are thermostatic controls, perhaps set it to the lowest possible setting.

Otherwise, turn it on occasionally, most importantly during freezing weather. Also vent the room from time to time (radiator can be off).

Cianos

They're just the old twisty ones.

The room would be used the odd time so the actual usage would cater for the venting/occasional switching on of the radiators.

Otherwise, is it best to leave them switched off completely or should they be on a bit?

Thanks

Victor

If there is a risk of the room freezing, they should be on. Otherwise, you are essentially wasting heat. Think of the room as an extra wall cavity to keep the rest of the building warm.

The occasional heat / ventilation should take care of the risk of damp building up.