Williams Furnace 15" Vent Extension for 22038 and 30038 Series w56 (1) 1/2" fip x 5/8"

(1) 1/2" fip x 5/8" Flare straight

Advanced combustion system technology and variable combustion air control allow you to enjoy extended continuous burns

The co-axial vent system has the exhaust pipe within the air intake pipe which protects any surrounding combustible material from the high temperature of the flue gases as well as preheating the outside air prior to it being introduced to the combustion process

Item Number 7DF316-50 Series DuraFlex 316 Product Type Length Size (Diameter) 7" Flex Length 50' Warranty

Dried castable cement still contains chemically combined water that is given off as steam at higher temperatures

Williams Furnace 15" Vent Extension for 22038 and 30038 Series w56 (1) 1/2" fip x 5/8"Overview Williams Comfort Products Made In America Since 1916! For over 100 years, Williams has designed and manufactured quality heating, ventilation, and air conditioning products for both the home and business. It all started in 1916, when Jesse Williams began building gas steam radiators in Los Angeles under the banner Williams Radiator Company. Williams commitment to quality was clear from the start, and the companys product line expanded over