The Natural Philosopher wrote:
Pet @ www.gymratz.co.uk ;¬) wrote:
The Natural Philosopher wrote:

Absolutely. Turns chilly rooms into cosy rooms.

would it also not turn the inside of a house into an oven in the summer?


No. Does the inside of your insulated fridge turn into a roasting oven
in summer?


But doesn't a fridge stay cold actively? The only way an insulated room
could cool itself when warm outside would be air con surely.


It will actually tend to cool the interior in summer. As the exterior
brickwork can get very warm indeed.

Only in the sense that you will lose thermal mass, may there be a
problem - i.e. overnight the brickwork will cool, and that may be
transmitted to the interior during part of the early day in an
uninsulated house.

The solution is to have mass - a concrete floor, or brick chimney -
inside the house...where it can act to stabilise temperature