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A Springer study pits R-32, R-290, R-454B, R-454C, and R-513A against R-410A on COP, exergy, and TEWI. R-290 wins on efficiency, R-454B on the climate math.
Pull error histories and run tests before you open a panel. How techs use SmartThings, LG ThinQ Smart Diagnosis, GE SmartHQ Service, and Whirlpool's ecosystem.
An ASCE journal study traces the post-pandemic skilled trades shortage to early retirements, lost immigration, and gutted vocational training programs.
PE paid roughly 18.5x EBITDA for Champions Group. What drives home-service valuation multiples, what kills them, and how to build value before you sell.
NBER research built on U.S. tax returns finds gig workers are about twice as likely to launch businesses, usually in the field they gigged in. Shops, take note.
What CO, O2, and stack temperature readings mean on furnaces and water heaters, where to drill, and how analysis becomes a billable documented safety service.
How Much Does General Liability Insurance Cost for HVAC Contractors in California?
What HVAC contractors in California actually pay for general liability insurance in 2026, the underwriting factors that move the premium, and the coverage gaps that catch installers off guard.
Connected Appliance Diagnostics: Service Modes and Factory Apps for Samsung, LG, GE, and Whirlpool
Pull error histories and run tests before you open a panel. How techs use SmartThings, LG ThinQ Smart Diagnosis, GE SmartHQ Service, and Whirlpool's ecosystem.
What Your Shop Is Worth: How Private Equity Values Home-Service Businesses
PE paid roughly 18.5x EBITDA for Champions Group. What drives home-service valuation multiples, what kills them, and how to build value before you sell.
Combustion Analysis for Gas Appliances: Using an Analyzer on Furnaces and Water Heaters
What CO, O2, and stack temperature readings mean on furnaces and water heaters, where to drill, and how analysis becomes a billable documented safety service.
Flat-Rate vs. Time-and-Materials: Choosing and Building Your Pricing Model
How flat-rate price books are built, where T&M shops leak margin, how techs game each model, and a migration path that won't cost you your customer base.
Control Board Diagnosis: When It's Really the Board (and When It Isn't)
Control boards are the most expensive, most misdiagnosed swap in the trade. How to verify inputs and outputs with a meter before condemning a $400 part.
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