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Yeah, maybe I'm looking into it too much. Does it sound 'right' though that I've deliberately left one bedroom more open than the final (end of line) rads in order for it to heat up first? As an aside, so, even if people balanced to a set Delta, it doesn't necessarily mean that the order of...

So, you're saying that you overheat the living room so that it then cools to whatever temp you find acceptable?

All heating up but at different times.i.e. the one next to the boiler then the water loops upstairs and then feeds the hallway and living room/lounge. I've shut the l/s about 1/4 (apart from one bedroom which I want heating up earlier) and they all now heat up more or less the same time. Deltas...

I was reading an article about balancing and it said to balance to get Delta 20 whilst the boiler is at full output or maybe it will only show Delta 20c at full output, otherwise, if it modulates down to the minimum (6.9kw from 28kw i.e. 4:1 in my case), then only that delta will be shown at...

Balanced all rads, tried @ Delta of 10,15, 20 and only 5C showing at the boiler even when all l/s fully opened up it still shows 5C at the boiler. Anyway, was reading some old posts and saw this quote : "If the system is running with a fixed pump speed and and automatic by-pass valve, the...

No, they seem to be within .5 c of each other on max, Best leave both on max then? Both same RH too @56% 18.5 C

My 'problem' is that the 2 downstairs rooms are 'joined' via an archway opened all the time (about the width of 2 average doors, so not quite open plan). One room has the room stat and TRV set on max but am unsure wether to set the other TRV to max or not.

@Harry Bloomfield Would it also be wide open when demand is going from 18c to 19c or partially open i.e restricting the flow slightly?

If I could though (maybe by using a separate thermometer to check), would it be beneficial to slow the flow down, especially when nearing room stat temp?

Ok I know the principle of either there being no TRV (or if there is set it on max) in the same room as the room stat BUT, say I had the room stat at 19C, would it be beneficial to put the TRV on a setting just above 19c (about number 3 on a Drayton) in order for the water to be fairly flowing...

WB 30kw Si compact boiler (about 12 years old) that supplies heating and hot water. The pump is a 15/60 3 Speed Bosch. If I set the pump to Speed 2 (or 1 even) for the CH, does it always use Speed 3 for heating the DHW? Can't seem to find the answer anywhere. Thanks

Old thread but what did you do in the end please. I have a similar (although older) slate roof and part of the membrane has perished and when we have a westerly driving wind/rain we get a leak. Any other ideas welcome please

There's a few fine cracks in my render but I was thinking of cladding over it anyway for a couple of reasons 1. the cladding is pretty solid but not a level clean look and 2. to improve insulation, rather than take 'space' off internally plus move sockets out etc. Good or bad idea? What would I...

Oops, sorry yes, 5 C below the actual flow temperature. Both posts now edited for clarification.

Thanks for the reply. All the other rads are balanced so every rad is roughly the same temp. at about the same time. What 'niggles' me though is, that no matter what flow temp. I set, be it 40, 50, 60 etc. then the return at the boiler eventually stabilises to about 5C below the flow temp.. This...

We have 2 large radiators (1.9kw and 2.2kw) which are the furthest from the boiler. I have balanced all the others, some to 1/4 turn from off etc etc, but am unsure wether I should leave these last 2 rads fully open or balance to 12c or even more. They are in an open plan room and are in the...

Thanks, so a bit of upvc beading glue/siliconed to the underside of the lintel at the front edge should be fine as I think the 'strips' are only a couple of mm thick. Edit: there is some strips 5mm thick, so should be ok

Flat trim or bead? Would it be best for it to ‘hang’ below the face of the lintel a couple of mm? Top or bottom of lintel, sorry for sounding so thick, it’s just that I’ve read various differences. One even said under the lintel half inch in! Thanks

I want to stop any possible backtracking of water on my lintel. Don't want to grind anything out etc. but I read somewhere about putting a bead of silicone on the lintel (or maybe even a upvc trim?). If so, would the silicone bead go on the 'face' of the lintel or underneath it, how far in etc ...

I know I haven’t an external one. I will have a measure tomorrow John. If it is the ABV bypassing, is it adjustable via a Gas Safe person?