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I'm wanting to swap around the sides of my TRV valve and Lockshield, but apart from them both being 15mm connections, are valve bodies generally universal/the same dimensions? I.e. will I have to play around with tail protrusion and inlet pipe dimensions. The valves are Drayton eB valves and...

I'm hoping someone can help me get my head around understanding radiator valve pressure drop. As an example, from the attached chart, a lower pressure drop results in a lower achievable flow rate. To my mind, a lower pressure drop (i.e. less resistance to flow) should give a higher flow rate...

Using a thermocouple to measure flow and return on radiators throughout the house and I can't get anything really above 4 or 5 degree dT! This is on a modern condensing boiler. Only thought is that we're running at 45deg flow temp and whether that's effecting anything. Not sure what's...

Unearthed the original fire place yesterday after it was completely bricked up. Looking for advice on how to board up completely - my current thoughts were: - chimney sweep flue - bung flu with balloon/insulation (cap chimney with vent in due course) - scrub remaining soot/salts - batten the...

Hi all, I've finally taken the wall back to brick where we could see there was damp coming through. The damp was there when we bought the house and it looks like someone has previously put some 'special damp proof plaster on'... From the images, you can see it's pretty dry below the centre of...

Hi all (first post), I'm looking at insulating our ground floor bay window and have scoured pages to look for a similar arrangement to ours. The bay window has adjacent 'piers' (walls) at the end of the curve, I'm wondering whether I should/need to also strip the plaster back on these walls as...