England and Wales: 1950-1966
rental (private)
Cavity wall, filled cavity and internal insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Flat, insulated
Room heaters, mains gas
Gas multipoint
mains gas (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed during or after 2002
Appliance thermostats
rental (private)
Cavity wall, filled cavity and internal insulation
(another dwelling below)
Low energy lighting in 75% of fixed outlets
Flat, insulated
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass