England and Wales: before 1900
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 82% of fixed outlets
Pitched, no insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, LPG
Partial double glazing
double glazing installed during or after 2002
Programmer, TRVs and bypass
RHI application
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, insulated (assumed)
Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, LPG
Partial double glazing
double glazing installed before 2002
Programmer, TRVs and bypass