Statutes, codes, and regulations
Washington Administrative Code
Title 51 - Enterprise Services, Department of (Building Code Council)
Chapter 51-50 - State Building Code adoption and amendment of the 2021 edition of the International Building Code
Section 51-50-2111 - Section 2111-Masonry fireplaces

Wash. Admin. Code § 51-50-2111

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Current through Register Vol. 25-01, January 1, 2025
Section 51-50-2111 - Section 2111-Masonry fireplaces

2111.8 Fireplaces. Fireplaces shall be provided with each of the following:

1. Tightly fitting flue dampers, operated by a readily accessible manual or approved automatic control.

EXCEPTION:

Fireplaces with gas logs shall be installed in accordance with the International Mechanical Code Section 901, except that the standards for liquefied petroleum gas installations shall be NFPA 58 (Liquefied Petroleum Gas Code) and NFPA 54 (National Fuel Gas Code).

2. An outside source for combustion air ducted into the firebox. The duct shall be at least 6 square inches, and shall be provided with an operable outside air duct damper.

EXCEPTION:

Washington certified fireplaces shall be installed with the combustion air systems necessary for their safe and efficient combustion and specified by the manufacturer in accordance with IBC Section 2115 (WAC 51-50-2115).

3. Site built fireplaces shall have tight fitting glass or metal doors, or a flue draft induction fan or as approved for minimizing back-drafting. Factory built fireplaces shall use doors listed for the installed appliance.

2111.8.1 Lintel and throat. Masonry over a fireplace opening shall be supported by a lintel of noncombustible material. The minimum required bearing length on each end of the fireplace opening shall be 4 inches (102 mm). The fireplace throat or damper shall be located a minimum of 8 inches (203 mm) above the top of the fireplace opening.

Wash. Admin. Code § 51-50-2111

Amended by WSR 16-03-064, Filed 1/19/2016, effective 7/1/2016
Amended by WSR 23-02-073, Filed 1/4/2023, effective 7/1/2023

Statutory Authority: RCW 19.27.031 and chapters 19.27 and 34.05 RCW. 13-04-067, § 51-50-2111, filed 2/1/13, effective 7/1/13. Statutory Authority: RCW 19.27.031 and 19.27.074. 10-03-097, § 51-50-2111, filed 1/20/10, effective 7/1/10.