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Last seen: Jan 28, 2026
Oh and the lower 4 port mystery black valve. That’s connected to a water softener
On this obviously not accurate but top right much hotter than top left to touch. At one point top right was very cold to touch v top left. Currently b...
Looks like I have same brand LLH as this one:
Thanks both, picture attached (apologies if I'm not addressing all queries, perodically looking at this whilst working so not my full attention today....
@allyfish Afraid don't have more details, will ask plumber about the black 4 port valve. That flow rate, seems to be same atm and it's definitely ru...
It's a good point about pipe insulation, will raise that (it is lovely and warm in there lol). Outside is insulated after randomly a decorator on sit...
I've messaged plumber the temps of the zones (19.5 kitchen/diner, 17.5c downstairs, 18c up stairs) and he's saying he probably needs to put in a warra...
Here are some more photos attached. C doesn't look like it's a Grant part
Thanks Mike, I'll get back to you on all this later today when get home. For the heat requirement looking at the heat calc doc it states: When...
@gary no problem I’m only getting my head round this. I did do the rad sizing with them back in June I think so am having to warm up some old cells. ...
I'll raise this with the plumber (heating installers), thanks Gary. Not sure why everything was indicated then to use DT 20, that would be a huge mi...
Hi Mike, sorry wasn't clear. Whole house project was a full renovation/extension project with the heating system done as part of it. It's all brand...
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