England and Wales: 1900-1929
rental
Cavity wall, with external insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, 150 mm loft insulation
Room heaters, electric
No system present: electric immersion assumed
electricity (not community)
Fully double glazed
double glazing, unknown install date
Programmer and appliance thermostats
rental
Sandstone or limestone, with external insulation
(another dwelling below)
Low energy lighting in all fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Portable electric heaters (assumed)
Fully double glazed
double glazing installed during or after 2002
TRVs and bypass