England and Wales: before 1900
marketed sale
Cavity wall, as built, no insulation (assumed)
(another dwelling below)
Low energy lighting in 62% of fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Multiple glazing throughout
not defined
Programmer, TRVs and bypass
rental
Granite or whinstone, with internal insulation
(another dwelling below)
Low energy lighting in all fixed outlets
(another dwelling above)
Community scheme
Community scheme
mains gas (community)
Multiple glazing throughout
single glazing
Flat rate charging, programmer and TRVs