(1) Except as permitted by Sentences (2) and (8) to (10), fuel-fired appliances shall be installed in service rooms separated from the remainder of the building by fire separations having a fire-resistance rating not less than 1 h.
(2) Except as required by Sentence (3), a fuel-fired appliance that serves only one room or suite is not required to be installed in a service room separated from the remainder of the building.
(3) A solid fuel fired appliance shall not be located in a repair garage, a storage garage, or any other location where it could be exposed to flammable vapours or gases unless,
(a) it is enclosed in a service room that is separated from the remainder of the building by a fire separation having a fire-resistance rating not less than 1 h,
(b) it is supplied with combustion air directly from outside the building, and
(c) the heat that it generates is supplied indirectly to the space served by means of ducts or piping.
(4) A service room containing an incinerator shall be separated from the remainder of the building by a fire separation having a fire-resistance rating not less than 2 h.
(5) Equipment that uses a liquid having a flash point below 93.3°C shall be installed in a service room separated from the remainder of the building by a fire separation having a fire-resistance rating not less than 1 h.
(6) Electrical equipment that is required to be located in a service room by a regulation made under the Electricity Act, 1998, shall be installed in a service room separated from the remainder of the building by a fire separation having a fire-resistance rating not less than 1 h.
(7) Except as permitted by Sentence (8), in a storey that is not sprinklered, a service room that contains service equipment other than that addressed by Sentences (1) to (6), shall be separated from the remainder of the building by a fire separation having a fire-resistance rating not less than 1 h.
(8) If a service room referred to in Sentence (7) contains a limited quantity of service equipment, and the service equipment neither constitutes a fire hazard nor is essential to the operation of fire safety systems in the building, the requirements for a fire separation shall not apply.
(9) A fire separation is not required between a fireplace and the space it serves.
(10) A fire separation is not required between a rooftop appliance and the building it serves.
(11) The fire separation provisions for a fuel-fired appliance in a portable classroom shall conform to Article 3.9.3.7.