England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 60% of fixed outlets
Pitched, 75 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Some double glazing
double glazing installed during or after 2002
Programmer and room thermostat
rental
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 70% of fixed outlets
Pitched, 50 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Some double glazing
double glazing installed during or after 2002
Programmer, room thermostat and TRVs