Month / April 2026
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![Manual J vs Modern HVAC Software]()
Manual J vs Modern HVAC Software: Why Load Calculations Need an Upgrade in 2026
For decades, Manual J has been the gold standard for residential HVAC load calculations. It’s detailed, standardized, and widely accepted across the industry. But here’s the reality in 2026: the way HVAC…
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![Connected HVAC & IoT Data]()
The Rise of Connected HVAC: Using IoT Data to Improve Load Calculations and System Performance
Connected HVAC has quietly changed a lot about how contractors do their jobs, and most of the change has been for the better. Not long ago, you had to rely on a…
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![2026 HVAC Efficiency]()
2026 HVAC Efficiency Standards: What Contractors Must Change in Load Calculations and System Design
The phrase 2026 HVAC efficiency standards can be misleading. In most U.S. residential replacement and new-construction work, contractors are not dealing with a brand-new federal SEER2 or HSPF2 reset that started on…
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