Free residential service call with any repair during normal business hours

CSI Mechanical

   (704) 600-6267

Serving Shelby, NC Metro Since 2010

XL803 – TCONT803

  • 3 heat/2 cool
  • Humidity sensor
  • Dual fuel capable
  • Interactive touch screen
  • Auto changeover
  • Effortless programming
  • Real-time clock
  • Large back-lit display
  • Armchair programming
  • Air filter reminder


The XL803 seven-day programmable thermostat puts comfort in your control with three heat and two cool settings, as well as a humidity sensor and air filter reminder. Full of features so you can set it and forget it, this digital home thermostat is equipped to keep your home comfortable year round.

Fall special 2023