Paragraph 2
In this Schedule—
(a)
a measure is installed at non-gas fuelled premises where it is installed at premises which—
(i)
were non-gas fuelled prior to installation of the measure; and
(ii)
remained non-gas fuelled when installation of the measure was complete; and
(b)
premises are non-gas fuelled where the main space heating system for the premises is not—
(i)
fuelled by mains gas; or
(ii)
a district heating system.