England and Wales: before 1900
marketed sale
Granite or whinstone, with internal insulation
Solid, insulated
Low energy lighting in 83% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and underfloor heating, oil
From main system
oil (not community)
Partial double glazing
double glazing installed during or after 2002
Programmer, room thermostat and TRVs
RHI application
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 75 mm loft insulation
Air source heat pump, underfloor, electric
From main system
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing, unknown install date
Time and temperature zone control