Last seen: Aug 15, 2025
That's very good of you (sending the email). I haven't removed the foam insulation because as you can see in the photo, it is tightly wedged in place....
Not yet, it is going to be a last resort as it will mean moving furniture and taking up carpets and floorboards. That makes sense, and is a less d...
I have been giving some thought to how to test for an invisible bypass and have come up with the following: close all rad lockshield valves except two...
@derek-m - the secondary water pump was rotated 180 to put it back in the correct orientation, the plumber had left it reversed (he thought it might i...
Yes, I find that analogy works for me too, though I add fuel burnt: Think mph is kW, whilst miles travelled and fuel burnt is kWh. I find it furth...
@derek-m - yes, we have to stick with physics (Newtonian, not quantum) and the real world observations and data, and not forget the Holmesian dictum t...
Coming back to the calculations, this may well be the case. If we assume the heat loss is linear, ranging from 12.3kW at -2 ambient, and dropping to z...
Yes! But I'll come back to that if I may. Answers to the questions in your next and post: Continuously, as long as the room stat is calling for he...
@derek-m - I will have another close look. The only other connection to the rad circuit is the connection to pressurise it (it is a closed system) and...
@derek-m - thanks, that would be very welcome, and I am sure others will welcome it too. All the rads have TRVs and they are all definitely open (th...
@ronin92 - I do have a multi-meter with a thermometer scale using a thermocouple to take the readings. Putting that inside the insulation foam pipe wr...
@ronin92 - these temps are not easy to measure accurately. The clip on thermometers are typically +/- 5 degrees so not discriminating enough. I use a ...
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