I bought my house 4 yrs ago with a consevratory already on it. The conservatory does not have any doors between it and the open plan kitchen and dining rooms - there are just open archways so the previous owner presumably removed the external "back door" and removed the dining room window to make an open doorway into the conservatory.
On what used to be the rear external wall of the house was an old fan heater, which was an electric fan plumbed into the central heating, which blew out air into the conservatory warmed by the hot CH water. I am broadly aware of the buidling regs issues with new conservatories and the need to have a proper connecting door between the original house and the new conservatory and I also know that you cannot put radiators in a conservatory which are plumbed straight into the CH as I think they need to be separately controlled.
My (long winded!) question is, can I replace the knackered fan heater with a new one, which will also be plumbed into the CH, without falling foul of buliding regs, or is the fact that the original owner did things wrong years ago still going to leave me open to problems. My surveyor didn't mention any problems during the survey in 2006.
Thanks for any help and apologies for the length of the explanation!