HC Deb 20 June 1984 vol 62 c173W
Mr. Cartwright

asked the Secretary of State for Social Services whether the age of the property or the heating system is an overriding factor in considering applications for estate rate designation irrespective of the type of heating system installed or the tariff in force.

Dr. Boyson

No. The type of heating system—including, where appropriate, the fuel tariff—is the primary factor, but others, including the age and size of the properties, the standard of insulation, the age and condition of the heating system, the degree to which the system is actually used by tenants on the estate and the availability of cheaper alternative forms of heating are taken into account.