England and Wales: 1930-1949
rental
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, radiators, electric
Electric heat pump for water heating only
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass
rental
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass