Recent content by Boatybob

Thanks Richard I removed the isolation valve this afternoon and proved what it is. It seems as if I am following your route but a little later - still my system is much much newer - about 1971, when the house was built. Thanks to everyone for your help - situation sorted until the next time...

Hi to you all. I have read the manual and all the responses received yesterday and understand my problem much better. Thanks to you all for your help. If the valve without a tap beneath the pump in my pics (updated today) is an isolation valve and not a gravity check valve, then it appears...

Ok so the system is not new! I had to remove the 3/4 inch nuts and fittings from the rads - not all were that easy. I really appreciate your comments re usage when the winter comes and will sort that out. However this should not cause the rads to heat up when the room thermostat is at it's...

I have put a pic in the album below. Cant work out how to show it in this message. Hope it works. //www.diynot.com/network/Boatybob/albums/

Central Heating problem

1. Yes The system is the same as the one shown. 2. Yes There are three valves on th CH pipes. Two ofl them have red taps and appear to be on/off on the out and return to isolate the boiler. The third is next to the pump and has no tap,

Yes. The danfoss valve is on the HW system on the return pipe and has two ports.

Really grateful for all the help you are giving. I am not a pro and will probably have to get smeone in to do the job eventually. However, I do want to understand what is happening and why? How can I tell what type of system I have?

Thanks for quick responses. The HW system is gravity fed through one inch pipes controlled by a thermostat on the hot water tank through a Danfoss valve installed in the pipework. The Grundfos pump is on the CH system only and the pipework to the pump leaves the top of the boiler. The return...

I have just installed TRV's on all radiators (13) and all radiators heat up with TRVs fully open and overall thermostat (the existing room thermostat in the dining room) at highest level. However, when overall thermostat is at lowest point (10c), and water heating only is selected, upstairs...