England and Wales: 1900-1929
none of the above
Briciau solet, fel yGÇÖu hadeiladwyd, dim inswleiddio (rhagdybiaeth)
Solet, dim inswleiddio (rhagdybiaeth)
Goleuadau ynni-isel mewn 40% oGÇÖr mannau gosod
Ar oleddf, dim inswleiddio
Bwyler a rheiddiaduron, nwy prif gyflenwad
OGÇÖr brif system
mains gas (not community)
Dim
Rhai gwydrau dwbl
double glazing installed before 2002
Rhaglennydd a thermostat ystafell
rental (private)
Solid brick, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 64% of fixed outlets
Pitched, 250 mm loft insulation
Boiler and radiators, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs