heating

we have a heating mystery.  We don't normally use the hot water becasue we don't have a bath in our house just a wet room which has an electric shower.  Our electric appliances that need water take in cold water and heat it up.  As I had to do a huge load of floor washing and washing down paintwork I put the system on.  Low and behold the flipping thing has gone mad, it's heating the radiators as well and I can' cool them down.  Phoned the housing people and they are coming to investigate on Monday.