What is the minimum height for Low Voltage lights in a false ceiling, using
35w lamps - would 20cm be plenty?
I wanted to put Celotex in the space to try and insulate the room, I live
in a flat with 10ft ceilings. What would be the best way to do this, with
the lights? I would need to create spaces without Celotex to disapate the
heat. I could create boxes/channels lined with Plaster Board.
Anything else I should think of?
The more air circulation around the lights the better, so putting sealed
boxes around them will only capture the heat inside the box. Just make sure
you leave the celotex about 25mm to 30mm away from the edges of the lights
and leave some air movement to flow around the fittings.
200mm will be enough space above the light fittings.
That is the way to go.
The units get very hot, but the heat does dissipate back into the room
via the unit itself, and surround ceiling.
The biggest problem is keeping the transformers cool. They DO need some
airspace to work in - plus sufficient area of plasterboard to allow heat
The volume of air is not the issue, so much as free circulation of hot
air within the cavity to allow it to transfer to the plasterboard, and
thence out into the room.
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