Hvac Flex Duct Sizes

All flexible ducting hoses have an id size.

Hvac flex duct sizes.

No matter what size you get them in all of the hvac flexible duct hoses come in a shiny metallic silver color. The length of a standard hose is 25 feet. The sample from above calculates out to 7 inch for flex duct size. You may need to buy a sheet metal fitting to properly connect the correct size of flex duct to the hard duct.

For instance a 2 5 ton system approximately 400 cfm per ton would require 2 14 flexible return ducts or 1 very short flexible 18 duct to move the 1000 cfm required by the 2 5 ton system. As systems increase in efficiency the tolerances of how we have always done it will no longer be adequate. The specific measurement will depend on the type of hose in question but id measurements in flex duct sizing typically range from 1 to 24. The flex duct size may be different than the hard duct that runs to that room.

Flex duct 05 on most metal duct calculator round metal pipe 06 on most metal duct calculators field duct sizing chart rectangular sheet metal duct 07 on most metal duct calculators. The available sizes are 4 6 8 10 and 12. Each hose comes in several different internal diameter id options. Duct system sizes and airflow quick chart created date.

Flex duct 05 on most metal duct calculator round metal pipe 06 on most metal duct calculators. Field duct sizing chart.