(Taken from www.lennox.com)
"Enhanced control for greater comfort
Lennox' Merit Series 14HPX is the ideal solution for homeowners who want reliable cooling and heating performance, budget-friendly affordability, and money-saving energy efficiency. What makes the 14HPX even better is the enhanced humidity control that comes with the optional addition of our exclusive Humiditrol whole-home dehumidification system. Plus like every product Lennox manufactures, the 14HPX is designed for exceptional durability inside and out.Ideal comfort year round
The 14HPX is an all-in-one cooling and heating system, perfectly suited to warmer climates. During summer months, it works like an air conditioner, extracting heat from inside your home and moving it outdoors. When the weather turns cooler, the process is reversed as the unit collects heat from the air outside and transfers it inside.