England and Wales: before 1900
RHI application
Sandstone or limestone, as built, no insulation (assumed)
To unheated space, no insulation (assumed)
Low energy lighting in 17% of fixed outlets
Pitched, insulated at rafters
Portable electric heaters assumed for most rooms
Electric immersion, standard tariff
wood logs
Room heaters, wood logs
Full secondary glazing
secondary glazing
No thermostatic control of room temperature
RHI application
Sandstone or limestone, as built, no insulation (assumed)
Solid, no insulation (assumed)
Low energy lighting in 88% of fixed outlets
Pitched, 200 mm loft insulation
Ground source heat pump, radiators, electric
From main system, no cylinder thermostat
electricity (not community)
Room heaters, wood logs
Partial secondary glazing
secondary glazing
Programmer, TRVs and bypass