England and Wales: before 1900
marketed sale
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, no insulation
Room heaters, dual fuel (mineral and wood)
No system present: electric immersion assumed
dual fuel - mineral + wood
Portable electric heaters (assumed)
Single glazed
not defined
No thermostatic control of room temperature
RHI application
Granite or whinstone, with internal insulation
Solid, insulated
No low energy lighting
Pitched, insulated at rafters
Ground source heat pump, underfloor, electric
From main system
electricity (not community)
Fully double glazed
double glazing, unknown install date
Time and temperature zone control