Maximum Energy Efficiency

Energy Efficiency Amplified: Our Maximum Energy Efficient Air Conditioners

We all seek ways to be more efficient. Your air conditioner should be no different. And why should it be, you’re the one paying the energy bill after all. When you select one of the air conditioners below you’re guaranteed to get the coolness and comfort you expect, and the energy efficiency that many only dream about. Golden Seal Service Experts Heating & Air Conditioning doesn’t tout these as the most energy efficient air conditioners in Saint Charles for nothing; our air conditioners are finely tuned to reduce your utility bills while maximizing your family’s comfort. So when you’re ready to seize the savings your new AC could provide, give us a call at 630-246-2698 and we’ll help get your home optimized for maximum comfort.

Lennox XC25 Air ConditioningXC25

When was the last time you said “Now that is a nice air conditioner?” Oh, you’ve never said that? Things are about to change. Comfort is serious business, which is why we produced the XC25. It features Precise Comfort™ technology that changes its output in small increments to ensure your home is cooler than the other side of the pillow all the time. Honestly, it’s pretty remarkable.

The bells and whistles:

  • Solar Power Ready
  • Up to 25 SEER (Seasonal Energy Efficiency Ratio) – Translation: our most efficient air conditioner
  • A smaller carbon footprint with environmentally friendly R-410A refrigerant
  • Small, controlled output for a perfectly cooled home thanks to a variable capacity compressor
  • So incredibly quiet you won’t know that it’s running. Seriously, you’ll be amazed
  • PermaGuard™ steel construction for durability
  • iComfort™ control for top system performance
  • 10 Year compressor warranty
  • 10 Year parts warranty

Lennox XC21 Air ConditioningXC21

Have you decided that comfort is one of your favorite things about your home? Well it just so happens that we created the XC21 to fulfill those needs. Don’t be afraid to indulge in the goodness that is supreme comfort. No really, you’ve earned it. Not to brag, but with a 21.20 SEER rating your coolness comes with one of the industry’s most efficient air conditioners.


  • The quietest, most efficient central air conditioner you can buy
  • ENERGY STAR® qualified
  • Up to 21.20 SEER cooling efficiency – i.e. one of our most efficient air conditioners
  • Equipped to become a solar powered system with SunSource®
  • SilentComfort™ technology so you no longer have to chat over your loud air conditioner
  • iComfort™ enabled electronics to give you control while ensuring peak performance
  • 10-year Limited Warranty on compressor and covered components

Lennox XC17 Air ConditioningXC17

Do you hear that? We can’t either because of the SilentComfort™ technology that is part of the XC17. Maybe that’s why it’s the quietest single-stage air conditioner you can buy.1 No excuses for not hearing that it’s your turn to unload the dishwasher.

The XC17 isn’t just quiet; it also helps reduce your energy bills and is the most efficient single-stage air conditioner you can buy,2 providing hundreds of dollars in savings.

Benefits and Features:

  • Earned the ENERGY STAR® Most Efficient 2014 label, recognizing it as one of the industry’s best
  • A 17.50 SEER cooling efficiency, which means you have one of the most efficient air conditioners in the industry
  • iComfort™ enabled electronics so you can have total control and sustain top performance
  • SmartHinge™ technology so your system is easy to access for any AC repair needs
  • 10-year Limited Warranty on compressor and covered components

1 Air conditioners/heat pumps have sound ratings established per AHRI’s test standard: AHRI 270-2008. Size for size, as a product family, these air conditioners have the lowest published sound ratings of any major U.S. brand of air conditioning/heat pump equipment.

2 Efficiency claim based on comparison of single-stage air conditioning products’ SEER as published in AHRI (December 2009). Actual system combination efficiency may vary. Consult your local Lennox Dealer for exact system efficiencies.

Golden Seal Service Experts Heating & Air Conditioning
1730 Wallace Avenue, Unit B
St. Charles, Illinois 60174

Phone: 630-246-2698
License# 1450