none of the above
Solid brick, with external insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Room heaters, wood logs
Fully triple glazed
triple glazing
Programmer, room thermostat and TRVs
none of the above
Solid brick, with external insulation
Solid, insulated
Low energy lighting in all fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system, plus solar
mains gas (not community)
Room heaters, wood logs
Fully triple glazed
triple glazing
Programmer, room thermostat and TRVs