England and Wales: before 1900
RHI application
Sandstone or limestone, with internal insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, underfloor, electric
From main system
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control
marketed sale
Sandstone or limestone, with internal insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 350 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control