Ordinance 07-084 - Laserfiche WebLink

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(29) Amending Section 511.4. Section 511.4 is amended by deleting the second and third sentences. (30) Adding Sections 512.9 and 512.10. Sections 512.9 and 512.10 are added to read: "512.9. Listed gas fired water heaters need not be provided with a vent to the exterior when installed in an open parking garage or carport under the following conditions: (1) Such a garage shall comply with the openings provisions of the Building Code for open parking garages or carports. (2) Floor mounted heaters shall be installed in the garage so that the bottom of the combustion chamber is at least eighteen (18) inches above the floor and outside grade level. (3) Heaters shall be protected against mechanical damage as provided in Section 510.3. (4) An acceptable vent cap shall be provided unless not required by the heater's listing or the manufacturer's instructions. (5) When location of the heater may result in unsatisfactory dispersions of combustion products, venting by means of a mechanical draft system to the exterior wall line or to other approved point of termination shall be provided. (6) Installation of heaters under these provisions shall be approved by the administrative authority and the serving gas supplier. 512.10. Listed single and two- family gas fired water heaters rated at less than 55,000 Btuhs need not be provided with a vent extended through the roof of the building or enclosure when installed outside of the exterior walls of the building unenclosed or in approved enclosures. Protection of such water heaters from the weather shall be provided either by the appliance design itself or by an approved enclosure, when climatic or safety conditions warrant. In addition, such installations shall meet the following: (1) Adequate openings and clearances shall be provided by the enclosure in accordance with Sections 507 and 508. (2) Enclosure openings or vent caps shall be located in accordance with Section 517.5. 19