§ Mr. Whitlockasked the Secretary of State for Energy what research is being carried out upon the development of appliances which will burn bituminous coal smokelessly and economically.
§ Mr. EadieThe development of appliances to burn bituminous coal smokelessly has been an important feature of NCB coal utilisation R & D for more than a decade. Substantial progress has been made and a range of appliances is now available on the market. To date, sales of first generation fan blown smoke reducing appliances, of which three closed room heater models are available, exceed 50,000 units.
Development has continued on a range of second generation models of simpler design operating on natural draught. An open room heater appliance utilising natural draught has already sold over 7,000 units. Closed room heater and free standing boiler models are being developed.