# Noritz and Nihon Itomic partner to develop commercial CO₂ heat pump water heaters for North America

Noritz Corporation and Nihon Itomic Co., Ltd. entered into a partnership to develop their first commercial CO₂ heat pump water heater for the North American market. Nihon Itomic will lead product development, manufacturing will be by RB Corporation, and sales by NORITZ AMERICA CORPORATION.

- Type: Partnership
- Announced: 2026-01-20
- Where: United States
- Status: announced
- Products: commercial CO₂ heat pump water heaters
- Sectors: [HVAC and Industrial Refrigeration](https://endata.com/sectors/hvac-refrigeration.md)

## Companies

- [RB Group](https://endata.com/companies/68529.md) (partner)
- [Noritz Corporation](https://endata.com/companies/89782.md) (partner)
- [Nihon Itomic Co., Ltd.](https://endata.com/companies/89783.md) (partner)
- [NORITZ AMERICA CORPORATION](https://endata.com/companies/89784.md) (partner)

## Sources

- [asiadigest.net](https://asiadigest.net/2026/01/21/noritz-and-nihon-itomic-form-partnership-to-develop-commercial-co%e2%82%82-heat-pump-water-heaters-for-north-america/), 2026-01-20: "Noritz and Nihon Itomic first partnered in July 2025 to launch a commercial hybrid water heating system for the Japanese market."

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