England and Wales: 1900-1929
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 91% of fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, underfloor, electric
From main system, plus solar
electricity (not community)
Room heaters, wood pellets
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, insulated
Low energy lighting in 91% of fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, underfloor, electric
From main system, plus solar
electricity (not community)
Room heaters, wood pellets
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control