The Modine WeatherHawk® weatherproof duct furnace was designed for use with a building’s heating, heating/cooling and make-up air systems. Available in 11 power vented model sizes, the unit covers a wide variety of applications. They have input ranges from 75,000 to 400,000 Btu/Hr and can operate on either natural or propane gas. Right or left hand control access can be specified when ordering the unit. The duct furnace is certified for location either upstream or downstream from cooling coils and has holes to drain any condensate that may form onto the roof.