I've currently got a Ravenheat 820/20 RSF which I acquired when I bought the house two years ago. I currently have several issues with it and am wondering whether it is worth paying for all the problems to be looked at an fixed or just save a bit more and replace it.
The first problem is that the heating is always losing pressure. When the system runs you can hear a drip hitting the bottom of the case every 5 seconds or so. Previous engineer we had look at it said the AAV was broken. Does this sound likely or could it be something more serious?
Secondly, the hot water is now playing up. Last summer the plate heat exchanger was scaled up and had to be unblocked. At the moment, every time you run hot water the boiler fires but water comes out so hot it burns your hand even though the hot water temperature is set to the lowest setting. The boiler also cuts out, the water runs cooler and then it fires up again. When the boiler runs cool you can hear a sort of noise similar to a kettle boiling.
I don't mind spending money getting it repaired although I'm wondering if this is like an old car which now requires lots of money chucking at it. I found the invoice which said it was installed in 1995.
Thanks in advance
The first problem is that the heating is always losing pressure. When the system runs you can hear a drip hitting the bottom of the case every 5 seconds or so. Previous engineer we had look at it said the AAV was broken. Does this sound likely or could it be something more serious?
Secondly, the hot water is now playing up. Last summer the plate heat exchanger was scaled up and had to be unblocked. At the moment, every time you run hot water the boiler fires but water comes out so hot it burns your hand even though the hot water temperature is set to the lowest setting. The boiler also cuts out, the water runs cooler and then it fires up again. When the boiler runs cool you can hear a sort of noise similar to a kettle boiling.
I don't mind spending money getting it repaired although I'm wondering if this is like an old car which now requires lots of money chucking at it. I found the invoice which said it was installed in 1995.
Thanks in advance