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IAQ & Ventilation
National Comfort Institute
Biological growth in the crawlspace.
IAQ & Ventilation
Before Blaming the HVAC Equipment, Look for the Real Cause of the Callback
This HVAC callback shows why contractors should look beyond equipment when diagnosing comfort problems and consider airflow, building pressure, duct leakage, and ventilation.
Sept. 1, 2026
SkillCat
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Industry News
SkillCat Brings Building Science Certification to HVAC Technicians
Sept. 2, 2026
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IAQ & Ventilation
Test, Don’t Guess: How to Build a Better HVAC Business
HVAC Chats
Aug. 26, 2026
Jim loved to challenge his students to question what they had been taught and prove it with data. One of his most controversial topics was draft hoods on atmospheric equipment.
IAQ & Ventilation
The CODE of Captain CO: Jim Davis
Aug. 4, 2026
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Industry News
Bipartisan Bill Targets Indoor Air Quality in Federal Buildings
July 30, 2026
National Comfort Institute
Jim Davis performing a combustion test on a Trane furnace.
IAQ & Ventilation
Remembering Jim Davis: How 'Captain CO' Changed HVAC Combustion Testing Forever
July 7, 2026
Rensa Filtration
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IAQ & Ventilation
Why Climate Should Be a Design Variable in Every Filtration System
April 29, 2026
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IAQ & Ventilation
Stop Selling HVAC Add-Ons and Start Selling Comfort Solutions
HVAC Chats
April 22, 2026
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IAQ & Ventilation
Rethinking Ductwork: Turn Poor HVAC Installs Into Higher Profits and Healthier Homes
April 13, 2026
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