G.3 Development is permitted by Class G subject to the following conditions—
(a)the air source heat pump is used solely for heating purposes;
(b)the air source heat pump is, so far as practicable, sited so as to minimise its effect on the external appearance of the building;
(c)the air source heat pump is, so far as practicable, sited so as to minimise its effect on the amenity of the area; and
(d)the air source heat pump is removed as soon as reasonably practicable when no longer needed.