England and Wales: before 1900
none of the above
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Pitched, 300 mm loft insulation
Room heaters, coal
No system present: electric immersion assumed
house coal (not community)
Portable electric heaters (assumed)
Single glazed
not defined
No thermostatic control of room temperature
RHI application
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 98% of fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, wood pellets
From main system
bulk wood pellets
Room heaters, dual fuel (mineral and wood)
Single glazed
not defined
Time and temperature zone control