England and Wales: before 1900
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 44% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, wood logs
From main system
wood logs
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
TRVs and bypass
rental
Granite or whinstone, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 87% of fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
TRVs and bypass