Desert Online General Trading LLC
Dubai, United Arab Emirates
Desert Online General Trading LLC
Dubai, United Arab Emirates
📊 Master HVAC calculations like a pro—because precision never goes out of style.
This 3-pack HVAC chart set includes R-22 and R-410a superheat/subcooling calculators plus a duct calculator with detailed diagrams. Field-proven for over 30 years and used by top training institutions, these slide charts provide precise, no-nonsense calculations essential for high-efficiency HVAC system optimization.
D**N
studying guide
is very good for studying for exam.
P**R
For this price everybody should have these
Never thought that I needed these three but after needing one over the summer I purchased all three at once. And after playing with it them on job sites for a couple days, I honestly can't believe I how much guesswork has been going on. Best way to teach beginners to
K**E
Four Stars
Quick and easy way to check subcooling and superheat. Like that they fit in shirt pocket
A**R
Good
Charts are accurate. Came on time as advertised. No issues or complaints.
M**.
Great tools. Bought two sets
I had lost the one I had right before a job. Had to use an app but I think slide rules are easier and faster. Gonna keep spares from now on. Great tools
4**F
Bought for work
These will be a handy reference tool. Sturdy and good info on them.
D**S
The pack came with a R22, R410, and duct sizing slide rule.
For HVAC work they are indispensable. Don't require batteries and can be used and read in DIRECT SUNLIGHT unlike phones and tablets. WIN WIN for you and me.
R**K
As advertised
As advertised
Trustpilot
2 months ago
2 weeks ago
