Hvac Duct Sizing Calculator Free

It is designed for calculating and sizing duct dimensions according to air volume cfm roughness velocity etc.

Hvac duct sizing calculator free.

Sheet metal duct friction loss calculator. Read round duct diameter inches and friction loss per 100 of duct inches of water. It is available in si and british ip units. In wg duct tel.

Enter duct airflow cfm duct velocity fpm duct length and the number of bends. For instance one of these methods is a residential load calculation. Include fittings in the duct tel enter either. Unless within 2 the diameter is rounded up to the nearest inch.

It will automatically adjust the size to keep from exceeding the maximum manual d velocities for residential duct systems. Friction rate velocity friction rate. Convert diameter to rectangular equivalent. In this video we ll be learning how to size and design a ductwork for efficiency.

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 duct size duct height net inside dimension in inches round duct size estimate. And many more programs are available for instant and free download. The heat load estimate is based on your climate region total square footage number of rooms or zones you want ceiling height insulation type number of windows and doors. Hvac duct size calculator excel free ductulator 7 15 2018 01 15 00 am.

Duct sizer ductulator for hvac air ducts. This hvac calculator is the closest estimate to the actual manual j calculation done by hvac pros. Includes a full worked example as well as usin. Office tools downloads duct calculator by marinsoft inc.

Rectangular duct is rounded up to the nearest 1 4 inch. Another method for sizing air conditioners is determining the size of the air conditioner system that s currently in place. Convert rectangular duct to round equivalent. This free ductulator calculates the exact duct size round and rectangular for the given friction rate duct type and amount of airflow.

How to design a duct system. This ductulator uses the colebrook equation to calculate the smallest duct size acceptable for the selected friction rate and duct type that stays within the selected acca manual d recommended velocities.