England and Wales: before 1900
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 70% of fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Some double glazing
double glazing installed before 2002
Programmer, TRVs and bypass
marketed sale
Sandstone or limestone, with internal insulation
Solid, insulated
Low energy lighting in 82% of fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Some double glazing
double glazing installed during or after 2002
Programmer, room thermostat and TRVs