A though strikes me as I currently have all the boards up in the ground
floor: I ought to take the opportunity to lag the heating pipes.
Take it this is pretty much a no-brainer decision? Wickes economy stuff as
good as any for this purpose? Think its about £2 for 5m.
email me at
richard at olifant d-ot co do-t uk
This would be a good plan. If your air bricks and other ventilation
are working properly, the space underneath the floor boards can get
quite cold. Some years ago, in a house that was similar to how
yours sounds, I did some measurements one windy winter's night near a
front wall and it was only a few degrees. I insulated the pipes
not so much for heat loss issues but a possible risk of freezing.
To email, substitute .nospam with .gl
I've got some sketchy figures on emissions vs. insulation thickness:
15mm pipe - zero: 47W/m, 9mm: 14W/m, 25mm, 2.5W/m
22mm pipe - zero: 64W/m, 9mm: 19W/m
So on 100m of pipe lose 4.7kW by not insulating, 1.4kW with 9mm and
only 250W with 25mm insulation. 13mm would sound like a good
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