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  1. samiebon1

    Radiator valve size interchangeability

    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...
  2. samiebon1

    Understanding radiator valve pressure drop (dP)

    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...
  3. samiebon1

    Radiator dT nowhere near 20deg

    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...
  4. samiebon1

    Exposed fire place boarding

    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...
  5. samiebon1

    Damp below window and adjacent walls

    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...
  6. samiebon1

    Insulating bay window with adjacent piers

    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...
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