England and Wales: before 1900
RHI application
Sandstone or limestone, with internal insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Full secondary glazing
secondary glazing
Programmer and at least two room thermostats
ECO assessment
Sandstone or limestone, with internal insulation
(another dwelling below)
Low energy lighting in all fixed outlets
Pitched, 300 mm loft insulation
Air source heat pump, radiators, electric
From main system
electricity (not community)
Single glazed
not defined
Programmer and at least two room thermostats