England and Wales: before 1900
marketed sale
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 50% of fixed outlets
Pitched, no insulation (assumed)
Boiler and radiators, LPG
From main system
bottled LPG
Room heaters, dual fuel (mineral and wood)
Mostly multiple glazing
not defined
Programmer, room thermostat and TRVs
RHI application
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Boiler and radiators, LPG, Electric storage heaters
From main system
bottled LPG
Room heaters, dual fuel (mineral and wood)
Mostly secondary glazing
secondary glazing
Programmer, room thermostat and TRVs