Thanks both for such fast responses.
I had a feeling this would be the response. Like everything else in this house, it's a mess.
Do you have any info on what the different configurations are and the pros/cons?
Hi All,
I've had a browse through the forum and have found many a thread on this. However they all mention a 3 way valve and I've not been able to find anything that matches the descriptions in other threads.
I have a condensing boiler with hot water tank in the airing cupboard.
Control unit...