England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
No low energy lighting
Pitched, 75 mm loft insulation
Boiler and radiators, mains gas
From main system, no cylinder thermostat
mains gas (not community)
Room heaters, dual fuel (mineral and wood)
Single glazed
not defined
Programmer, room thermostat and TRVs
RHI application
Solid brick, with internal insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 270 mm loft insulation
Air source heat pump, underfloor, electric
From main system
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Some double glazing
double glazing installed during or after 2002
Time and temperature zone control