Reflective material for behind radiators

The local pound shop for tinfoil ! That's all it is and it doesn't make much difference behind a radiator. The foam part might act as an insulator. I would look in B&Q for foam or polystyrene and local shops for tinfoil and PVA glue.

You need to buy a roll of this.

In article , Roger Mills scribeth thus

Course your only doing this on external walls with rads on aren't you;?...

The foam backing seems to help - I remember that the room felt a bit warmer after this stuff was used rather than plain foil.

Yes, but what is the damage doing it on an internal wall with a radiator on? While I accept that any heat going into the wall is going towards heating the room, why not try and heat the air as quickly as possible before warming up large chunks of plasterboard, so the room feels warmer? :-)

In article , Simon Finnigan scribeth thus

Well suppose thats one way of looking at it;!...

No i`m genuinely curious as to which would be more efficient, both in the end result and for a quick heating of the room. Realistically any heating of the wall past the surface is heating something that won`t directly warm the room the wall is attached to, but would it then release this heat over a period of time, keeping the room warmer than if the wall hadn`t been warmed. And I mean by a meaningful amount, not by fractions of a degree :-)

I'm sure Screwfix have rolls of this in their catalogue

They sure do, with thanks to the other poster who pointed me in that direction. Now got it delivered, and just waiting until I get round to putting it in :-)