Whether you need to boost air flow for heating or cooling, or pull power to exhaust air, Tjernlund has the right Duct Booster Fan for the job. The DB-2 DUCT BOOSTER is designed to increase the flow of heated air in warm air heating systems, or cooled air in central air conditioning systems. Its size and design limits its use to branch ducts serving individual rooms, not the main supply or Trunk line duct. The DUCT BOOSTER can be mounted on round or flat ducts. It is frequently installed on a warm air duct of a gravity warm air furnace to provide heating for a basement area. All Tjernlund supply and exhaust Duct Booster Fans are engineered for easy installation, quiet operation and years of trouble-free service. FEATURES Duct Booster Fans can be installed in existing supply ducts to boost air flow into hard-to-heat or cool rooms. Duct Boosters are the efficient, economical way to exhaust unwanted heat, humidity, odors or other air-borne contaminates. For boosting air flow in heating or air conditioning ducts, or for powered ambient air intake or exhaust. Easy installation in both round and rectangular ducts. Installs in round metal ducts from 5 - 8 diameter or rectangular ducts as shallow as 3 1/4. Can be installed in a section of metal duct and spliced into a section of flex duct.Fits 5 to 8 Inch Round Duct
Fits Rectangular Duct as Shallow as 3.25 Inches
Rated to 200F