16 Common Things Homeowners Don't Know Are ILLEGAL in 2026

Get The 30-Year HVAC Bible — Make Your Heating And Cooling System Last Decades Longer → https://liibro.com/l/hvac/john-the-hvac-guy Millions of homeowners are unknowingly breaking the law when it comes to everyday heating, cooling, and HVAC decisions. This video breaks down sixteen things that are actually illegal in 2026, covering federal rules from the EPA, Department of Energy, and IRS, as well as state and local codes that vary widely across the country. Topics include the correct disposal of mercury thermostats, why buying refrigerant without certification violates the Clean Air Act, the dangers of hydrocarbon refrigerant substitutes like those marketed as 22A, and what really happens when you toss a window unit at the curb. The video also covers furnace replacement permits, carbon monoxide alarm requirements, unvented gas heaters, oversized range hoods without make-up air, and bathroom fans that vent into attics. Viewers will learn about regional SEER2 efficiency minimums, landlord cooling obligations, the now-expired Section 25C heat pump tax credit, and the new refrigerant leak sensors required on systems using A2L refrigerants like R-454B. The final items cover real estate disclosure laws and the serious federal fines for venting refrigerant. Throughout, the video calls out how the word "illegal" is sometimes used as a sales tactic around R-410A equipment that is actually still legal to install and service in most of the country. #hvac #homeimprovement #homeowner #airconditioning #heating #energyefficiency #diy #realestate #epa #refrigerant