Hi,
While routing around in my mums attic over xmas, I noticed steam rising from the c/w c/h small expansion tank that is sitting on the larger mains water tank. On closer inspection the water in the tank was hot and it was flowing into the tank is a light but steady trickle flow from a copper pipe. The water was quite hot from the pipe. The steam is rising and soaking into the rafters and felt in the roof and I am concerned that this will cause major problems for my parents with damp rafters. The C/H is a combination of oil and a back boiler. Generally they would have a good fire going most days through the winter and this would heat the rads and they would use the oil initially on cold mornings. I think the problem started to occurr about 2 years ago when the back boiler went and they got a plumber to replace it. Because since then they tell me that if they have a roaring fire, the upstairs rads are roasting hot where as the down stairs are only warm! Any idea why this is happening? Was the plumber they hired a cowboy?
Cheers Ado