England and Wales: 1967-1975
none of the above
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 37% of fixed outlets
Pitched, 100 mm loft insulation
Boiler and radiators, anthracite
From main system
anthracite
Room heaters, electric
Full secondary glazing
secondary glazing
Programmer, TRVs and bypass
RHI application
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 40% of fixed outlets
Pitched, 25 mm loft insulation
Boiler and radiators, coal
Electric immersion, off-peak
house coal (not community)
Room heaters, electric
Mostly secondary glazing
secondary glazing
Programmer and room thermostat