There are many factors to consider when purchasing a new furnace or air conditioner.
Terms to consider:

Efficiency
— Various methods are used to rate energy efficiency to help you compare energy costs.
AFUE for furnaces (Annual Fuel Utilization Efficiency)
SEER for central air conditioners (Seasonal Energy Efficiency Ratio)
SEER and HSPF for heat pumps (Heating Seasonal Performance Factor)
-Certain products have earned the Energy Star rating, which means that they are the most energy efficient and environmentally friendly units on the market. Look for Energy Star products to earn rebates and save maximum energy costs. Click here for video

Comfort
— Thanks to variable speed technology, you get more effective air circulation that matches your level of comfort more efficiently and precisely. Click here for video
York
Furnaces
Affinity™ Series Gas Furnaces
Affinity™ Series gas furnaces come with advanced modulating burners and variable-speed blowers that can match your comfort level more precisely, plus the innovative ClimaTrak™ Comfort System to set furnace operation to suit your locale.
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LX Series Heat Gas Furnaces
LX Series furnaces fit your needs with select high efficiency models that reduce your utility bills and a compact 33-inch cabinet that easily fits in tight areas.
Latitude™ Series Gas Furnaces
Count on the high efficiency of the Latitude™ Series models to reduce your utility bills. Plus, the compact 33-inch cabinet will fit into your home with room to spare.