HVAC Admin – Free browser-based toolkit for HVAC technicians

Summary: HVAC Admin provides HVAC field technicians with browser-based tools including an invoice generator, job calendar, parts database, and field calculators for BTU load, refrigerant charge, and duct sizing. It also offers a knowledge hub with refrigerant specs, capacitor cross-references, and troubleshooting guides, all accessible without signup or subscription.

What it does

It delivers workflow tools and calculators directly in the browser, enabling quick access to job-related functions and technical references offline as a progressive web app.

Who it's for

Designed for HVAC technicians needing fast, subscription-free tools and information on job sites.

Why it matters

It eliminates the need for multiple apps or subscriptions by consolidating essential HVAC tools and data in one free, offline-capable platform.