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Partners & Manufacturers

As a trusted leader in our industry, we care deeply about aligning our century old company with businesses we trust. We only work with the highest quality equipment and companies who share similar values to ensure your safety and peace of mind. 


Diamond contractor preferred - Greenwood Heating & Air
Trane Comfort Specialist - Greenwood Heating & Air
Lennox Premier dealer - Greenwood Heating & Air
WaterFurnace - Greenwood Heating & Air
ACV Triangle Tube - Greenwood Heating & Air
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water heater replacement seattle

According to the Environmental Protection Agency (EPA), Americans spend around 90% of their lives indoors, where pollutants are two to five times more concentrated than those outside. This shows the importance of a ventilation system, ensuring the air remains clean and fresh. 

With a 98% customer satisfaction rate, QuietCool® puts the “V” in HVAC. At Greenwood Heating, we can install, repair, and maintain this advanced whole-house fan that can ventilate all year while saving energy and protecting your health. 

How Does the QuietCool® System Work?

  1. Run your AC unit in the middle of the day when it’s hottest outside. 
  2. When the temperature inside is cooler than outside, turn off your AC and open windows around the house in the morning or night. 
  3. Turn on your QuietCool® fan and set the speed and timer you want. 
  4. Let QuietCool® pull in cool, fresh air from outside and expel hot, stale air through your attic’s vents. 
  5. QuietCool® will change the air in your home 15 to 22 times per hour to cool down your home, clean the air inside, and cut back the number of hours your AC unit is running. 

Benefits of Choosing QuietCool®

  • Save up to 90% on your energy bills 
  • Extend the life of your HVAC system and roof by up to 90% 
  • Feel instantly refreshed as your house’s temperature drops 10°F 
  • Eliminate odors in 3 to 4 minutes 
  • Improve indoor air quality 

When to Use Your QuietCool® Ventilation System

Spring and Fall 

Use QuietCool® anytime the air outside is cold to enjoy a comfortable, cool day at home without turning on your AC unit. 


QuietCool® should be on during cool nights and mornings to remove the heat trapped in your home and help your AC run at its best. 


During winter, QuietCool® can get rid of stagnant air and help you breathe healthy, fresh air every day. 

Trident Pro X Series

  • Basic 
  • Permanent Split Capacitor Motor (PSC) 
  • From 115 to 1,147 watts, depending on the model 
  • From 1,498 CFM to 7,015 CFM depending on model 
  • 42,1 to 47,3 dBA sound level average 

Stealth Pro X Series

  • Premium 
  • Electronically Commutated Motor (ECM) 
  • From 66,7 to 72,5 watts depending on the model 
  • From 1,479 CFM to 6,996 CFM, depending on the model 
  • From 37 to 47,3 dBA sound level average 

Interested in Our Ventilation Services and QuietCool® Products?

Ready to experience the benefits of QuietCool® for yourself? Contact us today to schedule installation, repairs, or maintenance or to learn more about our QuietCool® product line.  

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All calls to and from Greenwood Heating may be recorded for customer service and training purposes.