England and Wales: before 1900
RHI application
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 9% of fixed outlets
Pitched, insulated at rafters
Boiler and radiators, mains gas
From main system
wood logs
Portable electric heaters (assumed)
Mostly double glazing
double glazing installed during or after 2002
Programmer, TRVs and boiler energy manager
RHI application
Solid brick, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 9% of fixed outlets
Pitched, insulated at rafters
Boiler and radiators, mains gas
From main system
wood logs
Portable electric heaters (assumed)
Mostly double glazing
double glazing installed during or after 2002
Programmer, TRVs and boiler energy manager