Recent content by teledu

It'll all go quiet now while I check out individual rad drops, get some new valves where they are sticky, balance them; etc. but thanks again. With hot rads the return temp at the boiler is generally around 35-40 when it fires up again, rising slowly to 50-ish when it decides to shut down (flow...

Now that looked pretty promising, and we have some serious progress. I've not shared this with my installer yet, but I'm not sure if we're quite out of the woods. Ramming that bypass tight shut has certainly made a big difference. I'm only getting a maximum burn still for around 10-12 seconds...

I'm busy making up 2 dunces caps right now... Just looked more carefully at the pipework: the bypass is in the middle of the 'T' branch to the 2-port valves; so it bypasses CH and HW. Even with the gate valve hard closed the bypass pipe is getting fairly hot....tum-te-tum....watch this space...

Good thoughts... I don't suppose the integral bypass provides any indication of it's status, so presumably that's a drain-strip-check? (no, not by me). If the boiler can be run without its casing (that seems to be necessary for commissioning...) it may be possible to monitor the temperature of...

Thanks bengasman: to answer your questions... The benchmark sheet has not been filled in (other than by the first installer). It isn't a very comprehensive sheet is it; but if I asked him to, there's no question that the flow and return figures (88 and 69 in its original location) would not be...

I bought a 6-month old Greenstar 24i System boiler that had been taken out by a flat dweller who needed to ditch their cylinder and move to a Combi for space reasons. It has sat around for a few months, but was installed recently by my friendly neighbourhood CORGI heating engineer who has no...