England and Wales: before 1900
RHI application
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 20% of fixed outlets
Pitched, 270 mm loft insulation
Ground source heat pump, radiators, electric
From main system, no cylinder thermostat
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, no room thermostat
RHI application
Granite or whinstone, with external insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 270 mm loft insulation
Ground source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control