England and Wales: before 1900
RHI application
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 70% of fixed outlets
Pitched, insulated at rafters
Boiler and radiators, wood pellets
From main system
bulk wood pellets
Room heaters, wood logs
Mostly double glazing
double glazing installed during or after 2002
Time and temperature zone control
marketed sale
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Flat, insulated (assumed)
Boiler and radiators, wood pellets
From main system
bulk wood pellets
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed before 2002
Programmer and at least two room thermostats