England and Wales: 1950-1966
RHI application
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 11% of fixed outlets
Pitched, 50 mm loft insulation
Air source heat pump, radiators, electric
From main system, plus solar
electricity (not community)
Fully double glazed
double glazing installed before 2002
Programmer, TRVs and bypass
RHI application
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 60% of fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, radiators, electric
From main system, plus solar
electricity (not community)
Room heaters, coal
Fully double glazed
double glazing, unknown install date
Programmer and room thermostat