England and Wales: 1967-1975
rental (social)
Cavity wall, as built, partial insulation (assumed)
To external air, no insulation (assumed)
Low energy lighting in 64% of fixed outlets
Flat, limited insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs
RHI application
Cavity wall, as built, no insulation (assumed)
To unheated space, no insulation (assumed)
Low energy lighting in all fixed outlets
Flat, limited insulation (assumed)
Air source heat pump, radiators, electric
From main system
electricity (not community)
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass