Thank you so much for speedy reply I will certainly check up on these suggestions.
By the way What is a lock shield valve and is it difficult to fit? Thanks again
Is it very difficult to change the position of a thermostat. The one fitted in my hall is too close to the bathroom heater which influences the temperature of the rest of the radiators. The bathroom radiator has no thermostat so is very warm all the time.
Hope someone understands this
