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WAC 51-11R-40351

Table R403.6.1Mechanical ventilation system fan efficacy.

TABLE R403.6.1
MECHANICAL VENTILATION SYSTEM FAN EFFICACY
Fan Location
Air Flow Rate Minimum (cfm)
Minimum Efficacy (cfm/watt)
Air Flow Rate Maximum (cfm)
Range hoods
Any
2.8
Any
In-line fan
Any
2.8
Any
Bathroom, utility room
10
1.4
< 90
Bathroom, utility room
90
2.8
Any
For SI: 1 cfm = 28.3 L/min.
[Statutory Authority: RCW 19.27A.020, 19.27A.045, 19.27A.160, and 19.27.074. WSR 16-02-127, § 51-11R-40351, filed 1/6/16, effective 7/1/16. Statutory Authority: RCW 19.27A.020, 19.27A.045 and chapters 19.27 and 34.05 RCW. WSR 13-04-055, § 51-11R-40351, filed 2/1/13, effective 7/1/13.]
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