England and Wales: 1967-1975
marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 97% of fixed outlets
Roof room(s), ceiling insulated
Boiler and radiators, mains gas, Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Partial double glazing
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
RHI application
Cavity wall, filled cavity
Solid, insulated
Low energy lighting in all fixed outlets
Roof room(s), insulated
Air source heat pump, underfloor, electric
From main system
electricity (not community)
Fully double glazed
double glazing, unknown install date
Time and temperature zone control