England and Wales: before 1900
FiT application
Solid brick, as built, no insulation (assumed)
Solid, insulated
Low energy lighting in 83% of fixed outlets
Pitched, 350 mm loft insulation
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Fully double glazed
double glazing installed during or after 2002
Time and temperature zone control
none of the above
Solid brick, with external insulation
Solid, insulated
Low energy lighting in 83% of fixed outlets
Pitched, 400 mm loft insulation
Boiler and underfloor heating, mains gas
From main system
mains gas (not community)
Fully triple glazed
triple glazing
Time and temperature zone control