England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 38% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, anthracite
From main system
anthracite
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 38% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, anthracite
From main system, plus solar
anthracite
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass