England and Wales: 1930-1949
marketed sale
System built, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Fully double glazed
double glazing, unknown install date
Programmer, TRVs and bypass
marketed sale
System built, with external insulation
Solid, no insulation (assumed)
Low energy lighting in 65% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass