air conditioners

Professional Guide to Heating and Cooling Equipment

Your heating and cooling system can be different from your neighbors’— it all depends on what is important to you.

To make sure you get the one that’s perfect for your home, build your system according to what’s most important to you: comfort, efficiency, quiet operation or extreme reliability.

For greater efficiency, look for:

ENERGY STAR® qualification
Variable speed motors
Multi-stage operation
AHRI-matched systems
Products with efficiencies no less than:

  • 15 SEER for air conditioners
  • 90% AFUE for furnaces
  • 9.50 HSPF for heat pumps

For greater comfort, look for features such as:

Variable speed motors

  • Reduce hot and cold areas throughout the home
  • Improve year-round humidity control
  • Improve indoor air quality; helps reduce dust and other allergens because of constant air movement
  • Lower monthly utility bills*

Multi-stage operation

  • Rather than being “all on” or “all off,” your furnace can adjust its heat output based on conditions inside and outside your home.
  • Get two air conditioners in one—high-efficiency products with multi-stage compressors will run on the first stage of cooling when temperatures are mild. The equipment will use less energy more often.
  • When outdoor temperatures reach extremes, the equipment will utilize the additional stage, but will still operate efficiently because of the higher SEER rating.
  • Lower monthly utility bills*

For the quietest operation, select the following:


  • Products with Sound Reduction Technology
  • Advanced fan blades
  • Heavy-duty sound blankets


  • Products featuring Quiet Combustion technology
  • Small Btu inputs per burner
  • Gradual start-up avoid whoosing air and duct work “popping”
  • Insulated cabinets

For the greatest reliability, look for:

  • 10-Year Limited Warranties on parts
  • Lifetime Limited Warranties on the heat exchanger

Tri-County Heating and Air Conditioning works with multiple suppliers and can help identify the best HVAC equipment for your needs:

  • Armstrong Air
  • Trane
  • Carrier
  • Honeywell
  • Ecobee
  • TopTech
  • and more!