236.Petroleum equipment may be used in or near a building housing a service station or a service centre if
(1) the hazardous areas listed in Schedule II to Chapter VIII of the Construction Code (chapter B-1.1, r. 2) are separated from any room housing a solid or liquid fuel or gas heating appliance by walls having a fire-resistance rating of at least one hour within the meaning of Chapter I of the Construction Code;
(2) the room containing such a heating appliance does not
(a) have an opening less than 2.5 m from the floor; and
(b) is not used to store a Class 1 or Class 2 petroleum product or as a service area for work on the fuel supply system of internal combustion engines or to dispense, transfer or handle Class 1 petroleum products; the bottom of the combustion chamber of the heating appliance must be at least 500 mm above the floor and the appliance must be protected from impact;
(3) the combustion air necessary for the appliance comes from outside the building;
(4) the return air intake of a forced-air heating appliance is at least 1.25 m from the floor if it is located in a room listed as a hazardous area in Schedule II to Chapter VIII of the Construction Code; and
(5) the burner and the combustion chamber of the equipment are at least 2.5 m from the floor in any area where Class 1 petroleum products are dispensed, transferred or handled.