England and Wales: before 1900
non marketed sale
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 86% of fixed outlets
Roof room(s), ceiling insulated
Boiler and radiators, wood logs
Electric immersion, standard tariff
wood logs
Room heaters, wood logs
Fully double glazed
double glazing, unknown install date
TRVs and bypass
RHI application
Granite or whinstone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in all fixed outlets
Roof room(s), insulated (assumed)
Boiler and underfloor heating, wood logs
From main system
wood logs
Room heaters, wood logs
Fully double glazed
double glazing installed during or after 2002
Programmer, room thermostat and TRVs