Schedule Qualifying energy improvementsI1

air source heat pumps;

biomass boilers;

biomass room heaters (with radiators);

cavity wall insulation;

chillers;

circulator pumps;

cylinder thermostats;

draught proofing;

duct insulation;

gas-fired condensing boilers;

ground source heat pumps;

hot water showers;

hot water systems;

hot water taps;

external wall insulation systems;

fan-assisted storage heaters;

flue gas heat recovery devices;

heating controls for wet central heating systems or warm air systems;

heating ventilation and air-conditioning controls (including zoning controls);

high performance external doors;

hot water controls (including timers and temperature controls);

hot water cylinder insulation;

internal wall insulation systems (for external walls);

lighting systems, fittings and controls (including rooflights, lamps and luminaires);

loft or rafter insulation (including loft hatch insulation);

mechanical ventilation with heat recovery systems;

micro combined heat and power;

micro wind generation;

oil-fired condensing boilers;

photovoltaics;

pipework insulation;

radiant heating;

replacement glazing;

roof insulation;

room in roof insulation;

sealing improvements (including duct sealing);

secondary glazing;

solar blinds, shutters and shading devices;

solar water heating;

transpired solar collectors;

under-floor heating;

under-floor insulation;

variable speed drives for fans and pumps;

warm-air units;

waste water heat recovery devices F2...;

water source heat pumps.