England and Wales: before 1900
RHI application
Sandstone or limestone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 38% of fixed outlets
Roof room(s), limited insulation (assumed)
Boiler and radiators, dual fuel (mineral and wood)
Electric immersion, off-peak
dual fuel - mineral + wood
Fully double glazed
double glazing, unknown install date
TRVs and bypass
RHI application
Sandstone or limestone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 38% of fixed outlets
Roof room(s), limited insulation (assumed)
Boiler and radiators, dual fuel (mineral and wood)
Electric immersion, off-peak
dual fuel - mineral + wood
Fully double glazed
double glazing, unknown install date
TRVs and bypass