Hello, We have insulated the whole of our 1940 house from the inside using rigid fibreglass bats and plasterboard. Its previous insulation value was very poor in solid brick. We are on the last room which has a large stone fireplace with a wood-burning stove in it, on an external wall. We use this in winter but not everyday. I do not want this to be a cold spot when not in use and a huge heat loss when it is in use. I have about 4 to 6 inches to play with and still maintain a good air gap behind the stove but I am not sure what materials to use for both maximum efficiency and fire safety. What suggestions do members have for this scenario?
I should add that it has a flue pipe through to the top of the chimney with a proper watertight top plate and an insulated one at the bottom.
Advice would be most appreciated