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ลองใช้แล้วไม่คุ้มเงิน ตั้งค่าอะไรไม่ได้เลย ยิ่งใช้งานยิ่งงง
Great duct sizer
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.
A classic
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.
high quality accuracy.
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.
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Worked before update
Was a great app but now doesn't show top of screen after entering values.
Sliders are impossible to set accurately too. They always move when your finger is lifted.
Sliders are impossible to set accurately too. They always move when your finger is lifted.
Don't Waste Your Money
You can get the same program by downloading the Johnstone Supply app for free.
Mechanical Contractor
Use this app professionally, easy to use, always on target!
Poor quality app
Not worth the money.
Excellent
This app is excellent tool for HVAC tech. Thanks for help us.
A classic
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!
Love it!
Swigs
It's ok
Wawa
Good app
Free elsewhere
You can find this same exact app for free with the Johnstone supply app. So save your $6.99
Very nice!
This app is very good. Wish I had it when I did A/C service work. Electronic ductilator ++
Works great.
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.
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Piece of crap
Nothing more than a slide rule. I want
My money back!!!!!!!
My money back!!!!!!!
Awesome app
Awesome
Keep looking
Very user unfriendly. I hate it.
Best Ductulator You Can Get!!!
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.
It is a simple toys , not professional
Not a good value,if you try cook you will see a big difference
