England and Wales: before 1900
RHI application
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 86% of fixed outlets
Pitched, 200 mm loft insulation
Room heaters, dual fuel (mineral and wood)
Oil range cooker, no cylinder thermostat
dual fuel - mineral + wood
Fully double glazed
double glazing installed before 2002
No thermostatic control of room temperature
RHI application
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Ground source heat pump, underfloor, electric
From main system
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control