England and Wales: before 1900
marketed sale
Sandstone or limestone, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 87% of fixed outlets
Pitched, insulated
Boiler and underfloor heating, LPG
From main system
LPG (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Programmer and at least two room thermostats
marketed sale
Granite or whinstone, with internal insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, insulated at rafters
Boiler and radiators, LPG
From main system
LPG (not community)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control