The Lennox ComfortSense 7500 Series is part of the Thermostats test program at Consumer ... This may cause some HVAC systems to operate unpredictably or erratically. You will get digital access ...

and can be paired with a Lennox S40 Smart Thermostat. “We are committed to advancing heating, ventilation, and air conditioning (HVAC) technology to meet the evolving needs of our customers ...