
Five R-410A Replacements Go Head to Head: R-290 Takes Efficiency, R-454B Takes Emissions
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.
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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.

NBER researchers tracked UK boiler-to-heat-pump swaps: gas use fell 90%, total energy 40%, and a smart tariff cut peak electric draw in half. The rate matters.
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.
Home Warranty Work: The Real Economics for Independent Repair Shops
Dispatch fees, approved rates, authorization limbo: a former claims adjuster breaks down when home warranty work pays for repair shops and when it doesn't.
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