# A.O. Smith releases Voltex X CO2 heat pump water heater

A.O. Smith released the Voltex X outdoor split heat pump water heater using CO2 refrigerant, jointly developed with Panasonic. It produces domestic hot water and operates in temperatures as low as -25°F. A larger 6kW version is planned.

- Type: Product launch
- Announced: 2026-08-21
- Where: United States
- Status: completed
- Products: CO2 heat pump water heater
- Sectors: [HVAC and Industrial Refrigeration](https://endata.com/sectors/hvac-refrigeration.md)

## Companies

- [A. O. Smith](https://endata.com/companies/12261.md)
- [Panasonic](https://endata.com/companies/1026.md) (partner)

## Sources

- [naturalrefrigerants.com](https://naturalrefrigerants.com/news/weekly-wrap-up-ebm-papst-gets-acquired-a-o-smiths-new-co2-hot-water-heat-pump-a-3-5mw-industrial-ammonia-heat-pump-project-and-more/), 2026-08-21: "A.O. Smith has released the Voltex X outdoor split heat pump water heat using CO2 refrigerant."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.