The following additional definitions apply to R307-208:
"Clean wood" means wood that has not been painted, stained, or treated with any coatings, glues or preservatives, including, but not limited to, chromated copper arsenate, creosote, alkaline copper quaternary, copper azole or pentachlorophenol.
"Commercial new outdoor wood boiler" means a new outdoor wood boiler with a thermal output rating greater than 350,000 BTU per hour.
"Outdoor wood boiler" means a fuel burning device also known as a wood-fired hydronic heater:
"New outdoor wood boiler" means an outdoor wood boiler that commences operation on or after March 1, 2013.
"Sole source of heat" means the solid fuel burning device is the only available source of heat for the entire residence or business, except for small portable heaters.
"Residential new outdoor wood boiler" means a new outdoor wood boiler that has a thermal output rating of 250,000 BTU per hour or less.
"Unseasoned wood" means wood that has not been allowed to dry for at least six months.
"Wood pellet outdoor boiler" means an outdoor wood boiler with an automatic pellet feed mechanism.
Utah Admin. Code R307-208-1