England and Wales: before 1900
non marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, dual fuel (mineral and wood)
From main system
dual fuel - mineral + wood
Partial double glazing
double glazing, unknown install date
TRVs and bypass
non marketed sale
Granite or whinstone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Roof room(s), limited insulation (assumed)
Boiler and radiators, dual fuel (mineral and wood)
Solid fuel range cooker
dual fuel - mineral + wood
Room heaters, dual fuel (mineral and wood)
Mostly double glazing
double glazing, unknown install date
TRVs and bypass