HC Deb 06 February 1953 vol 510 c242W
Mr. Hastings

asked the Minister of Housing and Local Government to what extent the danger of sulphur dioxide and other noxious products of the burning of coal and coal products in foggy weather is reduced by the use of slow-combustion stoves.

Mr. H. Macmillan

As far as is known there is no reduction in the amount of sulphur dioxide emitted to the atmosphere when coal and coal products are burnt in slow, combustion stoves, but probably a little less smoke is formed from coal.