England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, coal
From main system, no cylinder thermostat
house coal (not community)
Room heaters, wood logs
Single glazed
not defined
No time or thermostatic control of room temperature
marketed sale
Solid brick, with internal insulation
Solid, insulated
Low energy lighting in 98% of fixed outlets
Pitched, 400+ mm loft insulation
Air source heat pump, underfloor, electric, Air source heat pump, radiators, electric
From main system
electricity (not community)
Room heaters, dual fuel (mineral and wood)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control