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Tell me how to calculate HVAC duct flow?

I need to install my own system.

asked by Ashley37 (60)

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Tags:  diy  how to  hvac

answers

There are many technical books available at your local library that Im sure could help you. If this isn't an option try the many do it yourself websites.

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posted by pandi68 (33)
6 votes

you can download the calc http://www. freecalc. com/, there you will find the calc to calculate HVAC duct flow.

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posted by pappu (168)
5 votes

Depending on the square footage, determine the maximum efficiency you can expect from the new HVAC system. Meters are available from home improvement stores and will calculate amount of pressure when you place in various ducts and turn the unit on. Results vary with unit and joint insulation.

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posted by Advisor (998)
5 votes

You need btu input and output to calculate the output percentage. Once you have btu output use the formula below to calculate CFM. CFM = btu / 1. 08 x delta T

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posted by R (15)
3 votes

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