The rads in my house have a Danfoss thermostat fixed. I want to decorate but am not sure how to remove the rads safely. The thermostats appear to be quite old but there are no markings to show the particular type of make

Trevor Hegarty, March 2008

remove the top section of the danfloss valve, on screw collar. A round horizontal disc ( top of valve ) should be showing with a vertical pin protruding, you then need a round disc to screw on which pushes down the pin shuting off the water flow to the radiator. These discs were supplied with each new valve, discs normally blue in colour, ask a plumber if he has one to loan you.

phil, June 2008