HVAC Refrigerant Log
iOS refrigerant log

Refrigerant log, leak rate and cylinders in one app

HVAC Refrigerant Log is a refrigerant log app for HVAC and refrigeration technicians. It helps record refrigerant added and recovered on each job, track cylinder weights, organize photo proof, and export a PDF for audit records. Free PT charts and superheat tools are included, and no account is required.

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Steel canister and a cold coil, no labels and no app screenshot

What the log records

Use HVAC Refrigerant Log to record added and recovered refrigerant by job, track cylinder weights, and attach photo proof so your notes stay tied to the work you actually did.

See related features in refrigerant log, cylinder tracking, and features.

Leak rate and repair deadline

The app will help you calculate leak rate with an annualizing method and flag when a repair is needed for larger appliances, so you can keep the job notes organized in one place.

Learn more in leak rate tracking and the guides section.

Audit PDF

When you need to show records, HVAC Refrigerant Log will export a PDF report with the service history on the phone so your job record is easier to review and share.

See the audit PDF export page for more.

Free tools

The app includes free PT charts, including R-454B and R-32, plus superheat and subcooling tools for quick checks in the field.

Explore the tools page and the web version page for what is planned.

Who it is for

HVAC Refrigerant Log is built for technicians and small contractors who want a simple refrigerant log app for day to day service records.

If you are getting started, visit get the app or read the pricing page for waitlist details.

Reference only. Verify with manufacturer data and gauges. Follow the manufacturer chart and EPA rules. This site is not an approval from EPA.