A day in the life · HVAC
We followed an hvac shop owner for one full day. Every moment a tool got used. Every moment a tool was missing. Here's what we're building, in the order it happens.
06:05
ACT 01
Homeowner's Carrier 96% AFUE furnace locked out overnight. Dispatcher routes the on-call tech — the one with an inducer motor on the truck, because it's always an inducer motor in January. Tech confirms the fault code on arrival, swaps the assembly, and texts the homeowner a photo of the flue test before leaving.
10:30
ACT 02
Two-ton Trane XV20i variable-speed heat pump, replacing a 1998 R-22 split system. Tech pulls the Manual J load calculation from the job record, verifies the lineset size against the Trane install manual, and pressure-tests at 400 psi before the EPA 608-certified tech opens the refrigerant circuit.
14:00
ACT 03
Six Lennox rooftop units on a 90-day maintenance agreement. Tech logs refrigerant charge, static pressure drop across each coil, and economizer operation on each unit. The property manager's report — with flagged units and recommended replacements — is in their inbox before the ladder goes back on the truck.
19:15
ACT 04
Owner sees the day — eight calls completed, two no-cool estimates pending, one heat pump install that ran two hours long and needs a conversation about labor cost. Maintenance agreement renewals for April are on the board. The dispatcher's callback list from this morning's lockout calls is already sorted by zip code for tomorrow.
Every tech who touches a refrigerant circuit needs an EPA 608 certification on file — and the certification has to match the refrigerant type. R-410A, R-32, R-454B — the refrigerant landscape is changing. The shop that tracks cert types per tech doesn't lose a job to an expired card on a Friday afternoon.
In HVAC, summer and winter are when the phones don't stop. Spring and fall are when you sell maintenance agreements, train new techs, and stock the trucks. The shops who go into July with clean dispatch and accurate truck stock have a different summer than the ones who don't.
Airflow, refrigerant charge, heat exchanger condition, thermostat wiring, and duct static pressure all affect each other. A tech who only replaces the part that failed — without checking what caused the failure — is back at the same house in 60 days. The diagnostic record is the defense.
A shop with 400 active maintenance agreements has a revenue floor before dispatch opens on January 1st. The shop with 40 is one slow season away from a cash flow problem. Selling, tracking, and renewing those agreements is the financial structure of the business — not a nice-to-have.
After the day ends
Browse the products that show up across this day, or talk to an HVAC specialist who has run a shop like yours.
