England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, no insulation (assumed)
Room heaters, dual fuel (mineral and wood)
Solid fuel range cooker, no cylinder thermostat
dual fuel - mineral + wood
Room heaters, dual fuel (mineral and wood)
Mostly double glazing
double glazing installed during or after 2002
No thermostatic control of room temperature
RHI application
Solid brick, with external insulation
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Flat, insulated
Air source heat pump, radiators, electric
From main system
electricity (not community)
Fully triple glazed
triple glazing
Time and temperature zone control