England and Wales: before 1900
non marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 38% of fixed outlets
Roof room(s), no insulation (assumed)
Electric storage heaters
Gas boiler/circulator
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Some double glazing
double glazing installed before 2002
Manual charge control
rental
Granite or whinstone, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Roof room(s), insulated
Room heaters, electric
Electric immersion, off-peak
electricity (not community)
High performance glazing
double, known data
Programmer and appliance thermostats