England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
(other premises below)
Low energy lighting in 67% of fixed outlets
(another dwelling above)
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
marketed sale
Solid brick, with internal insulation
(other premises below)
Low energy lighting in all fixed outlets
(another dwelling above)
Electric storage heaters
Electric instantaneous at point of use
electricity (not community)
Portable electric heaters (assumed)
Full secondary glazing
secondary glazing
Controls for high heat retention storage heaters