England and Wales: 1900-1929
marketed sale
Cavity wall, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, coal
From main system, no cylinder thermostat
house coal (not community)
Portable electric heaters (assumed)
Mostly secondary glazing
secondary glazing
Room thermostat only
RHI application
Cavity wall, filled cavity
Solid, no insulation (assumed)
No low energy lighting
Pitched, 300 mm loft insulation
Air source heat pump, underfloor, electric
From main system
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
No time or thermostatic control of room temperature