England and Wales: 1930-1949
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 30% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Partial double glazing
double glazing installed before 2002
Programmer and at least two room thermostats
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, insulated
Low energy lighting in 30% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Partial double glazing
double glazing installed during or after 2002
Programmer and at least two room thermostats