hi, I'm putting in a new bathroom suite. The old rad has already been taken off. I just need to cut and move the existing pipes, I should be ok with this but when it comes to filling it back up i think I'm gonna come a cropper. The boiler is older than i am, It's about 24 years old and its massive. I think it is a wourchester heat slave. Firstly I cant see a filling loop or where one would go, however their is a short pipe with a gate valve on it from one heating pipe to the other. Could this be it? also their is no obvious pressure gauge present, but in the same area their is a fitting I have never come across before, it looks like you could screw a pressure gauge in to it. is this what it is for? and finally if i do manage to do it what pressure should it run at? can anyone shed any light on this? cheers bob
towl rail, old combi
- Thread starter bobdmr
- Start date
The gate valve between two heating pipes is probably a by-pass.
Your system could be open vented, is there a header tank in the loft space.
Your system could be open vented, is there a header tank in the loft space.
I don't think so, their is no hot water cylinder. but I'll double check, its a massive house.
I didn't know combies had header tanks. would the header tank just be for the heating system. I take it, if it is open vented i can just isolate the tank and it will just top the system up to the correct pressure when i open the gate valve from the tank?
If the gatevale is fitted between the flow and return pipe then its a by-pass. But if the gatevalve is fitted between the heating return pipe and mains cold water then its a (so called) filling loop. It should have a non-return valve fitted on it, to stop contamination of mains water, most filling loops are silver braided flexible hose.
Your know if its pressurized because you should have a discharge pipe on an outside wall near the boiler, also if its pressurized then a guage will be fitted on the boiler.
Your know if its pressurized because you should have a discharge pipe on an outside wall near the boiler, also if its pressurized then a guage will be fitted on the boiler.
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