rental (private)
Cavity wall, filled cavity
To unheated space, 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
No time or thermostatic control of room temperature
none of the above
Average thermal transmittance 0.40 W/m-¦K
Average thermal transmittance 1.20 W/m-¦K
Low energy lighting in 75% of fixed outlets
(other premises above)
Community scheme
Community scheme
Fully double glazed
Flat rate charging, programmer and room thermostat