Newbie to the forum. I'm looking for some advice regarding insulation below a gas fireplace.
We recently remove a large brick hearth. As you can see there is no insulation under the fireplace. The cold air comes in unabated and we would like fix that.
The three areas under the fireplace that need attention are all made entirely of wood (2x on 3 sides and 3/4" plywood on the top). My understanding is of course wood has a much lower combustible temperature than either fiberglass or rock wool insulation.
Is there any reason that I can't simply insulate the three cavities with product (non-paper faced) from the local home improvement store?
The town home was built in 1985. I'm unable to find any brand info/model number/specs pertaining to the fireplace.
Thank you for your thoughts and advice