England and Wales: before 1900
marketed sale
Timber frame, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 35% of fixed outlets
Pitched, 270 mm loft insulation
Boiler and radiators, wood logs
From main system, no cylinder thermostat
wood logs
Room heaters, wood logs
Single glazed
not defined
TRVs and bypass
marketed sale
Timber frame, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 270 mm loft insulation
Air source heat pump, underfloor, electric
From main system
electricity (not community)
Single glazed
not defined
Time and temperature zone control