With double glazing fitted and foam filled outer wall cavities is the recognised place to site a CH radiator still under the window or can it now be moved to another non windowed wall in the room with no ill effects?
IMHO fitting a rad under a window is an old wife's tale. And more often than not a bloody nuisance if you want full length curtains.
The message from "Dave Plowman (News)" contains these words:
It's one of those two edged sword things, innit. The main advantage of putting them under windows is that you don't lose space for wardrobes, beds etc.
There is an advantage to putting a rad under a window. It reduces draughts. Even a DG window is much colder than the other walls. This causes cold air to fall to the ground, setting up a convection circuit.
A radiator, on the other hand, heats air, causing it to rise and convecting the other way. Putting it under a window means that the two convection circuits oppose. The radiator will win and the convection current will be moderate. Temperature will be quite constant throughout the room.
If you put the rad on the opposite wall, the convection currents will combine and the draught within the room will be very significantly greater. There will also be a poor distribution of heat on the room.
However, if you want full length curtains, then putting rads below the window is a very bad idea. The effect of full length curtains on the rad will be severe.
My house was installed quite sensibily, with rads under the windows in the back room, where the windows are quite small sashes. In the front rooms, with large bay windows, the rads were placed on internal walls presumably on the assumption that large Victorian bays WILL have full length curtains.
Christian.
The message from "Dave Plowman (News)" contains these words:
And in my opinion it isn't but the subject has been done to death several times over the years and at least once in the recent past.
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