England and Wales: before 1900
marketed sale
Granite or whinstone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 89% of fixed outlets
Pitched, 100 mm loft insulation
Room heaters, dual fuel (mineral and wood)
From main system, no cylinder thermostat
dual fuel - mineral + wood
Room heaters, dual fuel (mineral and wood)
Single glazed
not defined
No thermostatic control of room temperature
RHI application
Granite or whinstone, as built, no insulation (assumed)
Suspended, no insulation (assumed)
Low energy lighting in 25% of fixed outlets
Pitched, 300 mm loft insulation
Room heaters, wood logs
From main system
wood logs
Room heaters, dual fuel (mineral and wood)
Single glazed
not defined
No thermostatic control of room temperature