Experience a “Greener” Home with Our Energy Efficient HVAC Products.

Going “green” has never been simpler. The innovations you’ll find in our energy efficient HVAC products will help you create a more comfortable and environmentally responsible home. No matter what equipment you choose, the products carried at Custom Air Systems Inc in Port Saint Lucie offer outstanding efficiency. Our products will help you contribute to a cleaner environment and could even lower your monthly utility bills.

See how Lennox has included energy efficiency in its products below. Give Custom Air Systems Inc a call at 772-335-3232 or set up an appointment online to discover more about adding a Lennox system to your home today.


* 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.

** Annual Fuel Utilization Efficiency (AFUE) measures how efficient the appliance is in converting its fuel’s energy into heat over the course of a year.

  • Lennox Ultimate Comfort System
    Our Ultimate Comfort System is bursting with energy efficient and cutting-edge technologies that will adjust your heating and cooling temperatures in minor increments to keep a consistent temperature and a minimal amount of energy.
  • Lennox Energy Efficient Air Conditioners
    At Custom Air Systems Inc, our Lennox® cooling products use an ozone-friendly, chlorine-free R-410A refrigerant that meets strict guidelines put forth by the U.S. Environmental Protection Agency (EPA). This refrigerant can help your equipment operate effectively, while lowering its environmental impact.
  • Lennox: First Air Conditioner with 26 SEER Rating
    We sell the first air conditioner to be rated 26 SEER* which means it’s one of the most efficient cooling systems available. Plus, the XC25 can substantially lower your monthly utility bills without sacrificing the cool temperatures you want.
  • Reduce Utility Bills
    Living in Port Saint Lucie doesn’t have to necessitate expensive utility bills. In fact, many of our HVAC products have earned the ENERGY STAR® label and high SEER* or AFUE** ratings because of their high efficiency levels that can potentially decrease your annual energy expenses.
  • Dual Fuel Systems
    Combining our gas furnace with an electric heat pump creates a dual fuel system that helps enhance your systems’ operation efficiency. The gas heat is solely used when it becomes too cold for the heat pump to run efficiently, possibly saving you money and keeping your home cozy.