§ 58. Mr. Stokesasked the Minister of Fuel and Power how much coal could be saved annually if all industrial build- 4W ings were insulated on the inside with suitable insulating material.
§ Mr. Joynson-HicksNo such estimate can be made, but the insulation of a million square feet of factory roofs and walls in suitable cases might save up to 6,000 tons of coal a year.