England and Wales: 2007 onwards
rental
Solid brick, with external insulation
Suspended, insulated
No low energy lighting
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
High performance glazing
double, known data
Programmer, TRVs and boiler energy manager
rental
Solid brick, with external insulation
Suspended, no insulation (assumed)
Low energy lighting in all fixed outlets
(another dwelling above)
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, TRVs and bypass