Section 51-50-1203 - Section 1203-Temperature control1203.1Equipment and systems. Interior spaces intended for human occupancy shall be provided with active or passive space-heating systems capable of maintaining an indoor temperature of not less than 68°F (20°C) at a point 3 feet (914 mm) above the floor on the design heating day. EXCEPTIONS: | 1. Interior spaces where the primary purpose of the space is not associated with human comfort. 2. Group F, H, S, or U occupancies. 3. Group R-1 Occupancies not more than 500 square feet (46 m2). |
1203.2Definitions. For the purposes of this section only, the following definitions apply. DESIGNATED AREAS are those areas designated by a county to be an urban growth area in chapter 36.70A RCW and those areas designated by the U.S. Environmental Protection Agency as being in nonattainment for particulate matter.
SUBSTANTIALLY REMODELED means any alteration or restoration of a building exceeding 60 percent of the appraised value of such building within a 12-month period. For the purpose of this section, the appraised value is the estimated cost to replace the building and structure in-kind, based on current replacement costs.
1203.3Primary heating source. Primary heating sources in all new and substantially remodeled buildings in designated areas shall not be dependent upon wood stoves.1203.4Solid fuel burning devices. No new or used solid fuel burning device shall be installed in new or existing buildings unless such device is United States Environmental Protection Agency certified or exempt from certification by the United States Environmental Protection Agency and conforms with RCW 70A.15.1005, 70A.15.3500, 70A.15.3510, and 70A.15.3530. EXCEPTIONS: | 1. Wood cook stoves. 2. Antique wood heaters manufactured prior to 1940. |
Wash. Admin. Code § 51-50-1203
Amended by WSR 14-24-055, Filed 11/25/2014, effective 5/1/2015Amended by WSR 16-03-064, Filed 1/19/2016, effective 7/1/2016Amended by WSR 20-01-090, Filed 12/12/2019, effective 7/1/2020Amended by WSR 20-21-021, Filed 10/9/2020, effective 11/9/2020Amended by WSR 23-23-102, Filed 11/15/2023, effective 3/16/2024Statutory Authority: RCW 19.27.031 and chapters 19.27 and 34.05 RCW. 13-04-067, § 51-50-1203, filed 2/1/13, effective 7/1/13. Statutory Authority: RCW 19.27.031 and 19.27.074. 10-03-097, § 51-50-1203, filed 1/20/10, effective 7/1/10; 04-01-108, § 51-50-1203, filed 12/17/03, effective 7/1/04.