District Heating Mr. Freeson asked the Secretary of State for Trade and Industry what steps he is taking to ensure collaboration between the fuel industries and public authorities on the problems of technical evaluation, design and financing of total energy and district heating schemes. Mr. Ridley None. This is a matter for the industries. Mr. Freeson asked the Secretary of State for Trade and Industry what steps he is taking to ensure more adequate evaluation of total energy and district heating schemes by private and public developers. Mr. Ridley Officials of the Department are taking part in an inter-Departmental study of these matters.