Simple Duct Sizing - Part 2

Espanol: • Dimensionamiento de co...
Polish: • Proste wymiarowanie ka...
In this video I may have over simplified sizing the duct in a two story home, knowing my furnace location is the key, from there you can figure out what size duct is needed for the total of supplies ( S.A. ) the links for part 1 and the video for using Manual D are linked below:
Sizing Ductwork - Quick and Easy Shortcut: • sizing ductwork, quick...
and
Air Duct Calculation Explained: • Air Duct Calculation e...
#furnace #hvac #duct #ductwork #ductsize #airflow #heating #sheetmetal

[@catherinegeiling5625]

Your videos are so informative - we're renovating (okay completely gutting) a 100 year old house and the existing ductwork is quite 'odd'. Your videos helped us immensely in making sense of what should be ... and cross your fingers what will be. Thanks!

[@abledistributors]

Thank you, best of luck. Brian...

[@markdion9932]

Thanks been waiting for this video , now I can work out my problem areas.👍

[@abledistributors]

good luck, here to help.

[@alex68aguilar]

Following from the city of chihuahua mexico
Keep up the good videos
Thanks!

[@abledistributors]

thanks for checking out the video, I'm working on a bunch more, stay tuned . Brian..

[@kernsy6715]

Great video. I have a Goodman 4ton modulating 120,000 btu furnace. I have 3 cfm output on panel that range from 1670-2200 cfm. My furnace is located in basement, I have a 16’ trunk on left side of house and a 36’ trunk going to the right side of the house. When I start to build off the plenum does the first run on both side have to equal and be around that range of cfm or does the longest run has to start off being that cfm range?

[@dinabrown6529]

I have a conundrum, I have a 3 ton 16 seer in a 1200sq ft home with 4 inch octopus soft ducts , and a 16x25x1 inch return lol. Hvac installed 3 years ago cant use the good filters because my system gets restricted. But with such a newer system I dont want to use fiberglass and risk the evap lol. At the time of install was told the ducts would be fine with an oversized unit as it would push the air better. Im so screwed cant afford new ducts now.

[@GCRAAY]

I don’t suppose you guys offer a duct design service cheap? Mine is simple. Ranch, crawl, center furnace, left right 5 take offs each side. 1500 sqft 3 ton. I’m looking for round main trunk lines. Easier for me. I’ve learned a bunch, but I’m not looking to find out I screw up something simple. I don’t even need a cad drawing.
Plenum size
Starter from plenum size
Then how often to reduce.
Currently have a rusted out system, and I don’t trust it was done right when first done. 5 take offs all on one side no reductions. Long story.

[@abledistributors]

first off, Thank You for checking out our video. Unfortunately we do not offer duct design services, there may be "on line" type layout and design help, there seems to be an app for everything now. Good Luck, Brian..

[@GCRAAY]

@@abledistributorsAwe poop! Thanks anyway.