England and Wales: 2012 onwards
marketed sale
Cavity wall, filled cavity
Suspended, no insulation (assumed)
Low energy lighting in 67% of fixed outlets
Pitched, insulated (assumed)
Boiler and radiators, oil
From main system
oil (not community)
Room heaters, dual fuel (mineral and wood)
Mostly double glazing
double glazing installed before 2002
Programmer and room thermostat
marketed sale
System built, as built, insulated (assumed)
Solid, insulated (assumed)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, underfloor, electric
From main system
electricity (not community)
Room heaters, wood logs
High performance glazing
double, known data
Time and temperature zone control