England and Wales: before 1900
marketed sale
System built, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 17% of fixed outlets
Flat, no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Single glazed
not defined
Programmer, TRVs and bypass
marketed sale
System built, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 17% of fixed outlets
Flat, insulated
Boiler and radiators, mains gas
From main system
mains gas (not community)
Single glazed
not defined
Programmer, TRVs and bypass