UL 103
Standard for Factory-Built Chimneys for Residential Type and Building Heating Appliances

DETAILS
Edition Number:11SCC Approved:--
Edition Date:2010-10-15DOD Approved: 1991-09-16
Price Code:BANSI Approved: 2017-03-15
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover factory-built chimneys intended for venting gas, liquid, and solid-fuel fired residential-type appliances and building heating appliances in which the maximum continuous flue-gas outlet temperatures do not exceed 1000°F (538°C). Factory-built chimneys are intended for installation in accordance with the Standard for Chimneys, Fireplaces, Vents, and Solid-Fuel Burning Appliances, NFPA 211, and in accordance with codes such as the International Mechanical Code, the International Residential Code, and the Uniform Mechanical Code. They are intended for installation inside or outside of buildings or both, in a manner that provides a vertical (30 degree maximum offset) conduit or passageway to transport flue gases to the outside.

    1.2 The chimneys covered by these requirements comply with either a limited duration 1700°F (927°C) flue-gas temperature test or a limited duration 2100°F (1149°C) flue-gas temperature test, at the manufacturer's option.

    1.3 These requirements cover dual purpose residential type and building heating appliance type chimneys, and single purpose building heating appliance type chimneys. Dual purpose residential type and building heating appliance type chimneys are tested enclosed and intended to be installed unenclosed or enclosed with combustible construction. Single purpose building heating appliance type chimneys are tested unenclosed and intended to be installed unenclosed or enclosed in a noncombustible chase.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Components
          • 3 Units of Measurement
          • 4 Undated References
          • 5 Glossary
        • CONSTRUCTION
          • 6 Materials
          • 7 Assembly
          • 8 Chimney Caps
          • 9 Firestop-Spacers
          • 10 Joints
          • 11 Radiation Shields
          • 12 Roof Assemblies
          • 13 Roof Jacks
          • 14 Support Assembly
          • 15 Openings in Chimney Walls
        • PERFORMANCE
          • 16 General
          • 17 Test Installations
            • 17.1 General
            • 17.2 Enclosed chimney installations (residential type and building heating appliance chimney)
            • 17.3 Unenclosed chimney installations (building heating appliance type chimney only)
          • 18 Temperature Measurement
          • 19 Thermal Shock Test
          • 20 Temperature Test – 1000°F (538°C) Flue Gases
          • 21 Temperature Test – 1400°F (760°C) Flue Gases
          • 22 Temperature Test – 1700°F (927°C) Flue Gases
          • 23 Temperature Test – 2100°F (1149°C) Flue Gases
          • 24 Positive Pressure Applications Test
          • 25 Draft Test
          • 26 Vertical Support Test
          • 27 Strength Test
            • 27.1 General
            • 27.2 Impact test
            • 27.3 Longitudinal force test
            • 27.4 Load test for chimney elbows
            • 27.5 Chimney joint load test
            • 27.6 Chimney joint torsion test
          • 28 Wind Load Test
            • 28.1 General
            • 28.2 Roof assemblies
            • 28.3 Lateral supports
          • 29 Attic Insulation Shield Ventilation Opening Test
          • 30 Rain Test
          • 31 Crushing Test of Nonmetallic Flue-Gas Conduit
          • 32 Resistance to Action of Acids Test of Nonmetallic Flue-Gas Conduit
          • 33 Freezing and Thawing Test of Water-Absorptive Nonmetallic Materials
          • 34 Cemented Joint Test of Flue-Gas Conduit
          • 35 Sulfuric Acid Extraction Test for Porcelain-Coated Steel Used for Flue-Gas Conduit
        • MARKINGS
          • 36 Marking
        • INSTRUCTIONS
          • 37 Installation and Maintenance Instructions