England and Wales: 1930-1949
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 45% of fixed outlets
Pitched, 100 mm loft insulation
Electric storage heaters
Electric immersion, off-peak
electricity (not community)
Room heaters, electric
Fully double glazed
double glazing installed before 2002
Automatic charge control
RHI application
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 400+ mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Mostly double glazing
double glazing installed during or after 2002
Programmer, TRVs and bypass