England and Wales: 1996-2002
RHI application
Granite or whinstone, with internal insulation
Solid, no insulation (assumed)
Low energy lighting in 76% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass
RHI application
Solid brick, with internal insulation
Solid, limited insulation (assumed)
Low energy lighting in 88% of fixed outlets
Pitched, 350 mm loft insulation
Boiler and radiators, oil
From main system, plus solar
oil (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass