Groundbreaking Technology and Efficiency Defines The Lennox® Comfort System Air Unlimited Heating & Cooling in Liberty delivers the most advanced heating and cooling products and features around, all used together in one system. The Ultimate Comfort SystemTM from Lennox® offers you pioneering HVAC technology that delivers remarkable energy efficiency. The Ultimate Comfort System is comprised of highly innovative pieces of technology that all work together to take your comfort to an amazing new level, with extraordinary efficiency. Learn more below. Precise Comfort® technology includes variable capacity and a variable speed motor, which operate like your car’s cruise control to ensure the system maintains stable temperatures without temperature cycling. This keeps your home at your preferred temperature and level of comfort all day, while enhancing overall efficiency. iHarmony Zoning® takes your comfort and energy savings to a new level. It helps the Ultimate Comfort System to direct air to specific rooms of your home while cutting back airflow to other areas. This tailors your comfort by room and floor. The iComfort Wi-Fi® touchscreen thermostat makes iHarmony Zoning simple to use. The most technologically advanced thermostat Lennox has ever made, the iComfort Wi-Fi thermostat permits you to evaluate and adjust your temperature—and save energy—from anywhere in the world, using your smartphone, tablet or laptop. Climate IQ® technology allows the Ultimate Comfort System to adjust to fit your needs and your climate. In warmer areas, it fine tunes airspeed to provide more humidity control. In cooler climates, the system starts up more slowly to allow the air to absorb more heat before circulation. SunSource® solar modules can power your heating and cooling AND route any surplus energy it generates into your home to run small appliances and electronics. This can dramatically reduce your energy cost—potentially reducing bills by up to half. The XC25 is the world's first residential air conditioner rated at 26.00 SEER.* When compared to common cooling systems, it may save you hundreds of dollars each year. Advanced variable-capacity technology makes the SLP98V one of the most efficient heating systems you can find. Like the XC25, this furnace may markedly reduce utility bills. *SEER, or Seasonal Energy Efficiency Ratio, measures the cooling efficiency of your air conditioner or heat pump. A higher SEER rating means greater energy efficiency and more savings for you and the environment.