The Only 4 HVAC Tools That Tell You If a Technician Is Legit

Most HVAC technicians show up with a screwdriver and a set of gauges. That's not a diagnosis. That's a guess. And guessing with your equipment costs you money every single time. There are four specific tools that tell you everything about whether the guy in your driveway is actually qualified to touch your system. A manometer. Digital manifold gauges with temperature probes. A combustion analyzer. An amp clamp. If they don't come off the truck, you've got a parts changer in a uniform. This video breaks down what each tool measures, why it matters, and the one question to ask before they start. Drop it in the comments: last time a tech came to your house, did he actually measure anything — or did he poke around for ten minutes and hand you a bill? My professional opinion based on field experience. Always check your system specs before making changes. Third-party footage used for commentary under Fair Use. #HVAC #HVACExposed #HVACTechnician