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
Boiler and radiators, oil
From main system, no cylinder thermostat
oil (not community)
Room heaters, dual fuel (mineral and wood)
Single glazed
not defined
Programmer, no room thermostat
RHI application
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, insulated
Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Single glazed
not defined
Programmer, TRVs and bypass