England and Wales: before 1900
non marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 80% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, dual fuel (mineral and wood)
Electric instantaneous at point of use
dual fuel - mineral + wood
Room heaters, dual fuel (mineral and wood)
Some double glazing
double glazing installed before 2002
TRVs and bypass
rental
Sandstone or limestone, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 80% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing, unknown install date
Programmer, room thermostat and TRVs