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Hey Product Hunt! 👋 I built HVAC Admin because I kept hearing the same complaint from HVAC technicians: "I don't need another subscription app — I just need quick tools that work on my phone at the job site." So here's what we made: 🔧 Free calculators — BTU load, superheat/subcooling, duct sizing — no signup, instant results. 📄 Invoice generator — Create and PDF-export professional invoices in...
HVAC Admin Free tools & knowledge hub for HVAC techs
The all-in-one toolkit for HVAC field technicians.
Workflow Tools: Invoice generator, job calendar, and parts database — all in your browser, no signup.
Field Calculators: BTU load, refrigerant charge (superheat/subcooling), and duct sizing.
Knowledge Hub: Refrigerant specs, capacitor cross-reference, and troubleshooting guides.
Built for technicians who need quick answers on the job site, not another subscription.
HVAC Admin Free tools & knowledge hub for HVAC techs