13. –
(1) Subject to paragraph (2) below, a grant may only be made for the purpose of–
(a)providing a type of central heating system approved by the administering agency and any new fuel source;
(b)repairing a central heating system that does not function if it is reasonable to do so having regard to the likely lifespan and efficiency of the system; or
(c)replacing or upgrading a partial or inefficient central heating system.
(2) Where an application is approved for a purpose mentioned in paragraph (1) grant may also be made for the purpose of providing–
(a)insulation between the internal and external leaves of cavity walls of the dwelling;
(b)insulation to any water heating system or any part of such a system;
(c)insulation in any accessible roof space in the dwelling, including the insulation of any cold water tank and any water supply, overflow and expansion pipes in such a space;
(d)draughtproofing to or in the dwelling together with additional means of ventilation for any rooms which would otherwise be inadequately ventilated after such provision;
(e)energy advice;
(f)a cold alarm;
(g)a smoke detector; and
(h)a carbon monoxide detector.