England and Wales: before 1900
marketed sale
Timber frame, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 67% of fixed outlets
Thatched
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, dual fuel (mineral and wood)
Single glazed
not defined
TRVs and bypass
RHI application
Timber frame, as built, no insulation (assumed)
Solid, insulated
Low energy lighting in all fixed outlets
Thatched, with additional insulation
Air source heat pump, underfloor, electric
From main system
electricity (not community)
Room heaters, wood logs
Partial double glazing
double glazing installed during or after 2002
Time and temperature zone control