England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 40% of fixed outlets
Pitched, 300 mm loft insulation
Room heaters, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Single glazed
not defined
No thermostatic control of room temperature
marketed sale
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, dual fuel (mineral and wood)
Partial double glazing
double glazing installed during or after 2002
Programmer, TRVs and bypass