Unless the context clearly requires otherwise, the definitions in this section apply throughout RCW
70A.15.3510 through
70A.15.3620:
(1) "Authority" means any air pollution control agency whose jurisdictional boundaries are coextensive with the boundaries of one or more counties.
(2) "Department" means the department of ecology.
(3) "Fireplace" means: (a) Any permanently installed masonry fireplace; or (b) any factory-built metal solid fuel burning device designed to be used with an open combustion chamber and without features to control the air to fuel ratio.
(4) "New woodstove" means: (a) A woodstove that is sold at retail, bargained, exchanged, or given away for the first time by the manufacturer, the manufacturer's dealer or agency, or a retailer; and (b) has not been so used to have become what is commonly known as "secondhand" within the ordinary meaning of that term.
(5) "Opacity" means the degree to which an object seen through a plume is obscured, stated as a percentage. The methods approved by the department in accordance with RCW
70A.15.3000 shall be used to establish opacity for the purposes of this chapter.
(6) "Solid fuel burning device" means any device for burning wood, coal, or any other nongaseous and nonliquid fuel, including a woodstove and fireplace.
(7) "Woodstove" means a solid fuel burning device other than a fireplace not meeting the requirements of RCW
70A.15.3530, including any fireplace insert, woodstove, wood burning heater, wood stick boiler, coal-fired furnace, coal stove, or similar device burning any solid fuel used for aesthetic or space-heating purposes in a private residence or commercial establishment, which has a heat input less than one million British thermal units per hour. The term "woodstove" does not include wood cook stoves.