England and Wales: 1900-1929
rental (social)
Cavity wall, filled cavity
Suspended, no insulation (assumed)
No low energy lighting
Pitched, 100 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed before 2002
Programmer, room thermostat and TRVs
not sale or rental
Cavity wall, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 80% of fixed outlets
Pitched, 350 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
High performance glazing
triple, known data
Time and temperature zone control