England and Wales: before 1900
non marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Pitched, no insulation
Portable electric heaters assumed for most rooms
Gas multipoint
mains gas (not community)
Room heaters, mains gas
Partial secondary glazing
secondary glazing
No thermostatic control of room temperature
rental
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs