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With A2L refrigerants now making up 91% of central ducted unit sales, HARDI says the transition is effectively complete — and all eyes are on EPA to fix installation deadline risks for remaining R-410A stock.

EPA’s proposed rule may offer short-term flexibility, but industry leaders warn it could trigger HFC shortages and stranded assets. 

Choosing the wrong stub connection can delay a compressor install — learn the differences and why matching them saves time, money, and frustration.

CO₂ refrigeration is growing fast, but there are pros and cons for cascade, booster, and secondary loop systems. Discover which system  works best in different climates and for different applications.

EPA’s proposed refrigerant rule revisions would extend compliance deadlines and raise GWP limits. Industry groups are divided between supporting flexibility and warning of confusion and delayed transitions.

The proposed Significant New Alternatives Policy Rule 27 would list several lower-GWP substitute refrigerants as acceptable, subject to use conditions, for residential and light commercial air conditioners and heat pumps, chillers, household refrigerators and freezers, motor vehicle air conditioners, and fire suppression and explosion protection.

Here’s what HVAC contractors and techs had to say on social media in our latest HVAC Talkback regarding the extension of the R-410A deadline.