Built for HVAC professionals · Free tools, paid extras

Free field tools now.
$25/mo unlocks the rest.

Pressure-temperature, superheat/subcool, static pressure, airflow, and Manual J residential load calculation are open to every technician — no login, no paywall, no friction. The rest of the ChillFlow stack (OEM literature portals, AI diagnostics, saved job history, and the marketing engine) is one $25-per-technician subscription.

$25/month, all-in-oneBuilt for HVAC prosCancel anytime

Target superheat

14°F

Liquid psig

287

Vapor psig

Outdoor temp

82°F

Target

10–18°F

Free P/T lookup · No login

Share-by-URL — same inputs both ends

Free · No login required

The five field calculators

Pressure-temperature, superheat/subcooling, static pressure, airflow, and Manual J residential load calculation — all open to any visitor. Send a tech a link and they open the same view with the inputs already filled.

Subscription · $25/mo per technician

The rest of the workflow

OEM literature portals, AI diagnostics, saved job history, and the marketing engine — one low monthly subscription, no per-seat traps.

Free, no login

Open field calculators

Open these in the cab, at the disconnect, or anywhere with marginal signal. No accounts, no per-call limits — your inputs are encoded into the URL so a tap on the shared link reopens the same view.

Pressure-Temperature Lookup

R-410A, R-22, R-134a, and more — resolve psig ↔ °F bidirectionally, with chart-range hints. Always current for A2L regulations.

Superheat & Subcooling

Suction and liquid-line gauge readings, flagged against common residential targets. °F/°C and psi/kPa supported.

Static Pressure

Supply + return readings with catalogued coil, filter, and heater drops. Flagged against ACCA residential and high-velocity targets.

Airflow (CFM) Calculator

Rectangular, round, and ACCA Rule-of-400 CFM calculator with a friction-loss reference table for residential duct.

Manual J Load Calc

ACCA-style residential load calculator. Structure, envelope, climate, occupants, and infiltration in — heating + cooling BTU/hr out, plus a ballpark equipment size.

$25/per-technician subscription

Everything else, one plan

One subscription unlocks the full technical stack and the marketing engine. No per-seat pricing traps. For operations running 1 to 20 technicians, ChillFlow is priced to stay.

Customer Database (CRM)

One quick-add form for every customer and site. Phone numbers normalize so duplicates get flagged; a soft-archived list keeps the noise out without losing the record.

Quoting from your Price Book

Build a quote by tapping parts and labor out of your own price book with markups baked in. Send it as a branded PDF in one tap.

Invoicing & Payment PDFs

Turn a completed job into a draft invoice — or build one from scratch — and send it as a customer-ready PDF, with line items already totaled.

Job Scheduling

A weekly calendar for the next visit. Assign each job to a tech (yourself by default), reschedule with a single tap from the detail screen.

Price Book Catalog

Parts and labor you actually carry, with your markups. Soft-archive the items that go out of season without losing the historical quote/invoice records.

AI Diagnostic Assistant

Describe today’s symptom. ChillFlow pulls from the technical database and proposes root causes / next steps while you’re on the call.

Equipment Manuals Library

Searchable technical data sheets, installation guides, and error-code references for the residential HVAC units you actually service.

Troubleshooting Checklists

Structured diagnostic flows for strip cycles, frozen coils, no-cool, short cycling, and the rest of the common-call playbook.

Saved Job History

Keep yesterday’s readings, today’s settings, and the brand/model mix for each account — pulled up on the next visit in two taps.

Marketing Engine

Weekly social posts, monthly SEO blogs, GBP updates, automated review replies, seasonal email campaigns, and an optional AI website chat.

Getting started

Up and running in minutes

Use the free tools now

No signup for the field calculators — open the link, set your inputs, and read the result. Share-by-URL works out of the box.

Activate when you need more

Run your business

Access everything from your phone. Technical references on the job, fresh content for your pipeline — no more tabs, no more sticky notes.

Pricing

Pick what you need. Pay only for what you add.

Free for the five field calculators. $25/month per technician for the full stack. Cancel anytime — no contracts.

Ready to simplify your operation?

Use the free calculators today. Activate the full ChillFlow stack whenever you’re ready — from the first service call to the next new customer.

Free field tools now.$25/mo unlocks the rest.