marketed sale
Cavity wall, filled cavity
Solid, no insulation (assumed)
Low energy lighting in 42% of fixed outlets
Pitched, 150 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, mains gas
Mostly secondary glazing
secondary glazing
Programmer, room thermostat and TRVs
not sale or rental
Average thermal transmittance 0.25 W/m-¦K
Average thermal transmittance 0.15 W/m-¦K
Low energy lighting in all fixed outlets
Average thermal transmittance 0.14 W/m-¦K
Air source heat pump, Underfloor heating and radiators, pipes in screed above insulation, electric
From main system
Electricity: electricity, unspecified tariff
Room heaters, wood logs
High performance glazing
Time and temperature zone control