Equipment

R-454B refrigerant

Name: Swiss Air Heating & Cooling
Address: 406 E Wabash St, O'Fallon, MO, 63366, US
Telephone: (636) 978-7800

The lower-global-warming refrigerant replacing R-410A in new air conditioners and heat pumps under the federal transition that began in 2025. It's a mildly flammable (A2L) refrigerant requiring updated equipment and handling.

Why it matters for your home

This transition is the main reason 'what my neighbor paid in 2022' no longer predicts AC prices. New R-454B equipment costs more, and old R-410A parts and refrigerant get pricier as supply tightens, which shifts the repair-or-replace math for aging systems. A big refrigerant repair on an old R-410A unit deserves a replacement quote alongside it.

Related terms

Compressor Evaporator coil SEER2

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Swiss Air services across O'Fallon and the St. Louis metro

Air conditioning repair & installation Symptoms, repair process, and full cooling scope. Furnace & heating service Repair, replacement, and heat pumps for Missouri winters. 24/7 emergency AC repair Nights, weekends, and holidays across the metro. HVAC service areas St. Charles County, St. Louis City and County.

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