England and Wales: before 1900
rental (private)
Solid brick, as built, no insulation (assumed)
(other premises below)
Low energy lighting in all fixed outlets
Pitched, 200 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Full secondary glazing
secondary glazing
Programmer, TRVs and bypass
rental
Solid brick, as built, no insulation (assumed)
(other premises below)
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Full secondary glazing
secondary glazing
Programmer, TRVs and bypass