HVAC Duct Sizer App Reviews

This is hands down the best ductulator you can get. The variety of options allow you to tweak whatever design conditions you would like. Waiting for a just now recommended upgrade for a total friction loss option where you could put together an entire system in order to size a blower.

Awesome

You should see the eyes of an engineer when I pull out my phone and use this app to show him that I can change the size of his duct correctly because of a beam the engineer "missed" when designing the system. The best is when I go into a home and show the owners why my competitor installed too small of ductwork for their top of the line a/c unit.

Very accurate and useful. Relatively easy to use if you know how to properly size ducts. The only problem with the app is after you enter a value, the screen stops scrolling up and down so you can't see the results. You have to back out to the main menu then re-select the category (i.e. Size by airflow) to see the answer.

This is a good, solid duct sizing program for sizing a few duct runs in the field. I have used it on recent occasions, and found it to be great. I no longer have to carry a ductulator with me.

Its Grrrreat! I wish this Application had a mode for lower numbers like 1 to 2000 cfm for Easy field Calculations and a QUICK rectangle to round converter. I like this App. and use it daily!

Nice update. I like the new aspect ratio slider control.

This is the most useful app I have on my phone, as my profession is designing HVAC systems. The app is intuitive, versatile and functional. It fits in my pocket. It's accurate. I use it every day.

My only complaint is that there is no rectangular to round duct conversion function. This would be extremely helpful to me. Other than that I am pleased with the app.

I find I use this daily for doing rule-of-thumb duct calcs. Results appear accurate and it's good to see periodic updates coming out. I'd love to see a native iPad version developed, too.

I am making decisions always, with this application I can double check the work of our contractors fast and easy.

Finally an app I don't regret buying

Just learning to properly size ducts using Manual D, only complaint is the list of materials doesn't include fiberglass duct board

This app is very good. Wish I had it when I did A/C service work. Electronic ductilator ++

This app has been around for years, and I finally got around to rating it. I use it daily and it's all i can ask for a simple duct sizing app. I love the emailing capability. Sure beats a ductulator. Love it!

This app is excellent tool for HVAC tech. Thanks for help us.

Use this app professionally, easy to use, always on target!

I’ve had this app for 4 or 5 years now, and I can’t believe how use it still is. It’s great that Carmel keeps updating it and now I can use it on my iPad.

I’m an HVAC engineer and I use this at work almost every day. It’s a great way to quickly size a run of duct and easily switch between duct types.