A. Objectionable Locations: Outlets shall not be placed back of swing doors or close to windows or door frames or any other location where curtains or draperies may be moved or blown by air currents so as to become ignited.
B. Size Of Outlets:
1. When an outlet is placed on a supply line before it is known what size pipe will be connected to it, the outlet should be of the same size as the line which supplies it.
2. Ceiling outlets in churches, stores, theaters, or other places of assembly, or in rooms where ceilings are twenty feet (20') in height or over, or in display or show windows, should not be less than one-half inch (1/2") so as to provide adequate support for large fixtures which may be used at such outlets.
3. In determining the size of outlets, allowance should be made for any anticipated increase in gas consumption. The following should be the minimum sized outlets for the various appliances:
No. 1 For kitchen range - 3/4 inch
No. 2 For circulating hot water heater - 1/2 inch, unless the heater can be satisfactorily supplied from the 3/4 inch range outlet
No. 3 For a room or space heater - 1/2 inch
No. 4 For an instantaneous water heater - at least 1 inch
C. Projection Of Outlets:
1. Outlets on concealed piping shall project beyond the furnished wall or ceiling (or in a suitable recess in the case of recessed fittings), so that all of the threads required are clear and available for use and there is sufficient wrench space on the unthreaded portion of the pipe; and the pipe shall be run far enough from floor and walls to permit the use of a suitable size wrench without straining or bending the pipe. When the type of appliance to be secured to the outlet requires a longer projection than stated above, allowances should be made for such equipment at the time of the installation of the piping. When combination fixtures or recessed baseboard fittings are used, the threads on the piping should be clear of the back plate of the outlet box.
2. Outlets on concealed piping for drops and brackets, and such short outlets as cannot give the wrench space described in subsection C1 of this section, shall be made by the use of drop ells or by fittings which provide the means for rigidly securing them in place; or the pipe may be bent if the conditions of subsection 10-3-10B of this chapter are complied with.
3. In every case, outlets shall be so installed that they cannot become displaced in the wall or ceiling. When an outlet is to be placed between joists, beams or studs, the outlet fitting shall be secured to a strut fastened between the joists or studs, in order to prevent the fixture from swinging and straining the joists.
D. Closing Outlets:
1. Each outlet shall be securely closed gastight with a thread iron plug or cap immediately after installation and shall be left so closed until an appliance is installed thereon. In no case shall the outlet be closed with lead caps or plugs.
2. When an appliance is removed from an outlet, and the outlet is not to be used again immediately, it should be securely closed gastight with a threaded iron plug or cap. (Ord. 15.28)