England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 87% of fixed outlets
Pitched, no insulation (assumed)
Room heaters, wood logs
Electric immersion, standard tariff
wood logs
Portable electric heaters (assumed)
Partial double glazing
double glazing installed during or after 2002
No thermostatic control of room temperature
RHI application
Solid brick, with internal insulation
Suspended, insulated
Low energy lighting in 50% of fixed outlets
Pitched, insulated
Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Some double glazing
double glazing installed before 2002
Programmer, TRVs and bypass