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Lennox ComfortSense® 3000 Series Programmable & Non-Programmable Thermostats

Make your home's comfort system energy efficient and easy to use.

Lennox ComfortSense® 3000 Series Programmable & Non-Programmable Thermostats are designed for ease of use in a no-nonsense, energy efficient package. This thermostat is designed to work with most basic applications.

  • ENERGY STAR® qualified*—Programmable models meet or exceed EPA guidelines for energy efficiency.
  • Dual-fuel capability (multi-stage heat pump version only)—increases the efficiency of dual-fuel heating systems by automatically alternating between gas and electric operation.
  • 5-day/2-day programming—allows you to customize a tempertaure schedule for weekdays and weekends, with up to two time periods per day.
  • Non-programmable model available for ease of use in basic applications.
  • Easy integration—works with advanced heating and cooling systems to propoerly regulate temperature inside the home.
  • Automatic changeover between heating and cooling operation, depending upon the demand (7-day programmable only).
  • Large buttons and backlit display—allow you to find the right setting, day or night.
  • Digital control—accurately maintains the desired temperature.
  • 2-Year Limited Warranty on covered components.
"I am totally pleased with the work and the people representing MM Comfort Systems. Class act all the way."

Sam - Shoreline, WA

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"We had the Lennox 13ACX installed and we've never been happier, we recommend anyone to use MM Comfort Systems"

Anne - Seattle, Wa

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"Your employees are excellent! Thank you! Great job, well done! And you beat the snow of 2/24/11. Fantastic."

Jerry - Sammamish, WA

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