England and Wales: before 1900
non marketed sale
Cavity wall, as built, insulated (assumed)
Solid, no insulation (assumed)
Low energy lighting in 92% of fixed outlets
Roof room(s), no insulation (assumed)
Boiler and radiators, dual fuel (mineral and wood)
From main system, 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 time or thermostatic control of room temperature
RHI application
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, LPG
From main system
bottled LPG
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass