HVAC Refrigerant Guides & Industry News

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  How Refrigerants Transfer Heat Inside an Air Conditioner

  Sep 21, 2026 FreonShop

  Refrigerant doesn't create cold — it carries heat. Here's what really happens inside your AC, why it never runs out, and what low charge means.

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  Which Refrigerants Are Being Phased Down in the United States?

  Sep 19, 2026 FreonShop

  Learn which refrigerants face the US HFC phasedown, how R22 differs, and what current regulations mean for existing AC and refrigeration equipment.

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  Residential Air Conditioner Refrigerant Timeline (1990–2026)

  Sep 16, 2026 FreonShop

  Explore the U.S. residential AC refrigerant timeline from R22 to R410A, R32, and R454B, including phaseout milestones and updated 2026 rules.

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  How to Tell If a Refrigerant Cylinder Is Factory Sealed

  Sep 15, 2026 FreonShop

  Learn how to check refrigerant cylinder seals, spot suspicious packaging, verify supplier records, and handle a cylinder with a damaged seal.

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  Why Does My Outdoor Unit Feel Extremely Hot?

  Sep 14, 2026 FreonShop

  Is your outdoor AC unit extremely hot? Learn what heat is normal, which symptoms suggest overheating, and when to turn off cooling and call a technician.

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  Recommended Refrigerants by Air Conditioner Age

  Sep 13, 2026 FreonShop

  Match AC age with likely refrigerants, from R22 and R410A to R32 and R454B. Learn why the equipment nameplate—not age—makes the final decision.