Launched this week
HVAC Admin

HVAC Admin

Free tools & knowledge hub for HVAC techs

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The all-in-one toolkit for HVAC field technicians. Workflow Tools: Invoice generator, job calendar, and parts database ā€” 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 gallery image
HVAC Admin gallery image
HVAC Admin gallery image
HVAC Admin gallery image
Free
Launch tags:Productivityā€¢Freelanceā€¢Tech
Launch Team
Webflow | AI site builder
Webflow | AI site builder
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What do you think? ā€¦

David
Maker
šŸ“Œ
Hey Product Hunt! šŸ‘‹ I built HVAC Admin because I kept hearing the same complaint from HVAC technicians: "I don't need another subscription app ā€” I just need quick tools that work on my phone at the job site." So here's what we made: šŸ”§ Free calculators ā€” BTU load, superheat/subcooling, duct sizing ā€” no signup, instant results. šŸ“„ Invoice generator ā€” Create and PDF-export professional invoices in under 2 minutes. šŸ“š Knowledge hub ā€” Refrigerant pressure charts, capacitor cross-reference, and troubleshooting guides all in one place. Everything runs in the browser, works offline-ish (PWA), and is 100% free. No ads, no paywall. Would love to hear what other tools HVAC pros (or anyone in the trades) wish they had! šŸ› ļø