FiT application
Sandstone or limestone, as built, insulated (assumed)
Solid, limited insulation (assumed)
Low energy lighting in all fixed outlets
Roof room(s), insulated (assumed)
Boiler and radiators, wood logs
From main system, plus solar
wood logs
Room heaters, wood logs
Fully double glazed
double glazing, unknown install date
Programmer, room thermostat and TRVs
none of the above
Average thermal transmittance 0.26 W/m-¦K
Average thermal transmittance 0.16 W/m-¦K
Low energy lighting in all fixed outlets
Average thermal transmittance 0.17 W/m-¦K
Boiler & underfloor, wood logs
From main system, plus solar
mains gas (community)
Room heaters, wood logs
High performance glazing
Time and temperature zone control