SmartAC.com says its sensors and service can predict HVAC maintenance needs and prevent costly breakdowns

It's easy to forget about your HVAC system--until it stops working and you find yourself baking in the summer heat or freezing in the winter cold. And the last thing you want to do is put yourself at the mercy of an HVAC repair company on the first searing-hot or icy-cold day of the season. SmartAC.com is launching out of stealth mode today with a sensor-and-machine-learning platform that it says will monitor the health of your entire HVAC system, and warn you of potential breakdowns before they happen. The company says it has enough confidence in its tech that it will offer a customer one year of free service in the event of an unpredicted breakdown. The heart of the system is a suite of three sensors that link to a central hub that connects in turn to your Wi-Fi network.