HVAC One Spot

My name is Scott. I'm a senior HVAC/R technician with over 20 years in the field, specializing in commercial and precision cooling systems.

I built this for myself. I wanted one place — on my phone, on the job — that had the tools I actually reach for without bouncing between four different sites and apps. One for P/T charts, another for nitrogen pressure correction, another for superheat. I just wanted it all in one spot.

This site is built by a tech, for techs. The P/T data comes directly from manufacturer charts. The calculators reflect how experienced techs actually work, not just what the textbooks say.

I decided to share it because if it matters to me, there's a good chance it matters to someone else out there doing the same work.

If something doesn't look right, or there's a tool you wish was here — reach out. This site gets better the same way we do. One job at a time.