As the proud owner of an old house, thermal insulation increasingly concerns me.
Some of my walls are a single brick thick. Today’s invention is a simple way to cut heat losses.
It consists of picture frames of the box type. Each of these would have a slab of insulation embedded behind the picture.
The frames would be made so that they clipped tightly together and onto the wall, forming an almost continuous interior covering and an undetectable thermal barrier.