England and Wales: before 1900
rental
Cavity wall, as built, no insulation (assumed)
(other premises below)
Low energy lighting in 40% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, electric
Electric immersion, off-peak
electricity (not community)
Some double glazing
double glazing installed before 2002
Programmer and room thermostat
rental
Solid brick, with internal insulation
(other premises below)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, electric
From main system
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs