Not accurate
This app does not work. It gives you different numbers every time.
Update looks great
I love this app since it includes so much free functionality include duct sizing, pt chart, and store locator. Great work.
Not working
Not working on iPhone 4S since iPhone update. Deleted it
No Metric Ductsizing
The duct section is useless for engineers who do work globally.
Nh3
Nh3 p/t not accurate and only goes to 13 hg
To HVAC student
No the chart is not wrong for R22
HVAC Student
Idk about the rest of the app but the pt chart is wrong for R-22
What about heat pumps?
Handy app but would be top notch if it had a heat pump savings calculator. How about a heat pump vs propane furnace cost of operation?
Very Useful Tool
This app is great and makes my job much easier. Only suggestion is to enlarge the user interface a bit. Everything seems kind of small. Keep up the great work Johnstone!
All you need
I love this app. Every thing you need is here. Now I don't have to call and ask Jeff for tech. help.
SWEET DREAMS HEATING AND COOLING SERVICE TECHNICIAN
REMEMBERING THE DAYS FROM 63rd ST. YOU CAME ALONG WAY. GREAT JOB...
Great
Best app... Has all I need to do my job
Efficiency Tools
The Efficiency Tools are under the Tools tab at the bottom of the screen. There is AC Efficiency Savings and Furnace Efficiency Savings. I hope that helps. If not please contact support and we'll help out! LB
I love my Job!
This app is great. The features this app provides are very useful. Can't wait to share with our customers
Great tools!
Awesome set of reference tools and Store Locator. Can't wait for them to add more!!!
Tools
The efficiency tool will be useful
