I've just looked at the Everest ad on TV, a little more sceptically - the one which compares old DG, with their new triple glazing, using thermal imaging.
It does appear to be a genuine comparison, except for one small point - The house with heat escaping has it's heating on, the triple glazed one has no internal heating to escape. The DG house shows the brickwork as well as the DG with heat escaping, the TG house has no signs of heat escaping from anywhere at all.
It does appear to be a genuine comparison, except for one small point - The house with heat escaping has it's heating on, the triple glazed one has no internal heating to escape. The DG house shows the brickwork as well as the DG with heat escaping, the TG house has no signs of heat escaping from anywhere at all.
