England and Wales: 1900-1929
rental
Solid brick, with internal insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, insulated at rafters
Electric underfloor heating
Electric immersion, off-peak
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Temperature zone control
rental
System built, with internal insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, insulated at rafters
Ground source heat pump, radiators, electric
From main system
electricity (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer and at least two room thermostats