Ordinance 349-75 - Laserfiche WebLink

• Each such appliance shall be installed in an approved location satisfactory to the Building Offical and to local and State fire prevention agencies. (b) All storage-type water heaters and hot water boilers deriving heat from fuels or types of energy other than gas, shall be provided with, in addition to the primary temper- ature controls, an over-temperature safety protection de- vice constructed, listed and installed in accordance with nationally recognized applicable standards for such devices. Section 2307 - Enclosures and Combustion Air (a) Fuel burning water heaters shall be assured a suf- ficient supply of fresh air for proper fuel combustion and ventilation. (b) Provisions shall be made to supply fresh air to the space in which fuel-burning water heaters are located if the volume in cubic feet of this space is less than: 1. One-twentieth of the maximum rated input in B.T.U. ' s of gas-burning water heaters, and other affected gas appliances, except listed ranges, hot plates, and refrigerators, in such space. 2 . One-tenth of the maximum rated input in B.T.U. ' s of all water heaters and other af- fected appliances burning solid and liquid fuel in such space. (c) Methods of supplying air. Where provisions for fresh air are required in this section, one of the following methods shall be used: 1. Permanent openings or ducts leading from the water heater location to other interior areas, except unventilated attics, which meet the minimum required volume specified in subsection (b) of this section. If such openings or ducts convey air from an attic space, the attic space shall be ventilated by fresh air openings or louvers on a vertical wall or at two different levels or elevations. 2 . Permanent openings or ducts leading from the water heater enclosure to the outside of the building. 3 . For gas-burning water heaters, all openings or ducts shall have a total unobstructed area not less than that shown in Table 13-1. For heaters burning solid or liquid fuels, the required areas shall be one and one-half times those required for gas-burning heaters. A minimum of six (6) inches unobstructed space across the entire front of the water heater shall extend from the floor to at least the top of the appliance. Areas of ducts or openings shall be equally divided with one-half (1/2) of the total required area within the upper twelve (12) inches of the appliance enclosure and one-half (1/2) not more than twelve (12) inches above the base of the lowest appliance within the en- closure. Required openings shall not be less than three (3) inches in least dimension. -5-