Brand guide · United States · checked October 19, 2026
Hitachi heat pumps
Hitachi is part of the Bosch family. ENERGY STAR lists 78 Hitachi outdoor models certified for the US, 56 of them cold-climate, and its best certified pairing heats at a COP of 2.60 at 5°F.
Hitachi at a glance
- Who owns it
- Bosch (Robert Bosch GmbH), through Bosch Home Comfort Group. Bosch agreed in July 2024 to buy Johnson Controls' residential and light commercial HVAC business plus 100% of the Johnson Controls-Hitachi Air Conditioning JV (including Hitachi's 40% stake) for US$8 billion, and completed the deal on July 31, 2025. Bosch uses the Hitachi name under a long-term licence. Some Hitachi-branded North American models (airCore700) are certified to ENERGY STAR by Qingdao Hisense Hitachi Air-conditioning Systems Co. (the Hisense-Hitachi JV).
- Sister brands
- Bosch, York (licensed), Coleman, Guardian
- Headquarters
- Gerlingen, Germany (Robert Bosch GmbH)
- How it's sold
- Not published
- Price tier
- Not rated. Not assessed: no maker pricing, positioning or warranty pages could be read (the Hitachi North American sites couldn't be read).
- What it makes
- ductless mini-split, multi-zone
- Names on ENERGY STAR's list
- Hitachi (certified by Johnson Controls, Inc.; Qingdao Hisense Hitachi Air-conditioning Systems Co., Ltd.)
Product lines
The current residential heat pump lines we found on Hitachi's own pages, with the low-temperature claim in the maker's words. 5 of 6 are sold as cold-climate.
| Line | Type | Cold-climate | Maker's low-temperature claim | Refrigerant |
|---|---|---|---|---|
| airHome 800 (single-zone) | ductless mini-split | Yes | No low-temperature figure published | R-32 |
| airHome 600 (single-zone) | ductless mini-split | Yes | No low-temperature figure published | R-32 |
| airHome 400 (single-zone) | ductless mini-split | Yes | No low-temperature figure published | R-32 |
| airHome Multi Pro (2-5 zone outdoor units) | multi-zone | Yes | No low-temperature figure published | R-32 |
| airHome Multi (2-5 zone outdoor units) | multi-zone | No | No low-temperature figure published | R-32 |
| airCore700 (built on a Hisense-Hitachi platform; also sold as York airCore700) | ductless mini-split | Yes | No low-temperature figure published | R-32 |
Certified models with the best cold-weather numbers
From ENERGY STAR's list for the US (updated October 19, 2026): each row is one outdoor unit with its best certified pairing. 64 of 78 Hitachi outdoor models use R-454B or R-32; the tables show those.
Mini-splits and multi-splits (78 models)
| Outdoor / indoor model | Size | Heat at 5°F | COP at 5°F | HSPF2 | SEER2 | Refrigerant | AHRI # |
|---|---|---|---|---|---|---|---|
| PAS-18BUFASDQ1-LAC PCI-B18UFA1DQ airCore700 | 18,000 BTU/h 1.5-ton | 15,000 BTU/h 83% of rated | 2.60 | 11.0 | 27.0 | R-32 ENERGY STAR Cold Climate | 217450776 |
| PAS-18BUFASDQ1 PCI-B18UFA1DQ airCore700 | 20,000 BTU/h 1.5-ton | 16,200 BTU/h 81% of rated | 2.60 | 11.0 | 25.0 | R-32 ENERGY STAR Cold Climate | 214723258 |
| RAC-GJ09WHAA RAK-GJ09PHAA airHome 600 | 9,000 BTU/h 1-ton | 8,400 BTU/h 93% of rated | 2.57 | 11.4 | 23.0 | R-32 ENERGY STAR Cold Climate | 215413018 |
| PAS-30BUFASDQ1-LAC PPFC-B30UFA1DQ airCore700 | 30,000 BTU/h 2.5-ton | 26,000 BTU/h 87% of rated | 2.50 | 10.0 | 19.6 | R-32 ENERGY STAR Cold Climate | 217450771 |
| PAS-24BUFASDQ1-LAC PPFC-B24UFA1DQ airCore700 | 22,000 BTU/h 2-ton | 19,000 BTU/h 86% of rated | 2.50 | 10.0 | 21.0 | R-32 ENERGY STAR Cold Climate | 217450770 |
| PAS-24BUFASDQ1 PCI-B24UFA1DQ airCore700 | 24,000 BTU/h 2-ton | 18,200 BTU/h 76% of rated | 2.50 | 11.6 | 24.0 | R-32 ENERGY STAR Cold Climate | 214723259 |
Most efficient for cooling
| Outdoor / indoor model | Size | SEER2 | EER2 | HSPF2 | COP at 5°F | Refrigerant | AHRI # |
|---|---|---|---|---|---|---|---|
| PAS-18BUFASDQ1-LAC PCI-B18UFA1DQ airCore700 | 18,000 BTU/h 1.5-ton | 27.0 | 15.0 | 11.0 | 2.60 | R-32 ENERGY STAR Cold Climate | 217450776 |
| RAC-XJ09WHAA RAK-XJ09PHAA airHome 800 | 9,500 BTU/h 1-ton | 26.5 | 16.1 | 12.0 | 2.10 | R-32 ENERGY STAR Cold Climate | 215911630 |
| RAC-XJ09WHBA RAK-XJ09PHBA airHome 800 | 12,000 BTU/h 1-ton | 26.5 | 16.1 | 12.0 | 2.10 | R-32 ENERGY STAR Cold Climate | 218694505 |
| PAS-18BUFASDQ1 PCI-B18UFA1DQ airCore700 | 20,000 BTU/h 1.5-ton | 25.0 | 15.0 | 11.0 | 2.60 | R-32 ENERGY STAR Cold Climate | 214723258 |
Look up any pairing by its AHRI number in the AHRI Directory ↗ or search the model in ENERGY STAR's product finder ↗. Ratings are for the exact indoor and outdoor pairing shown.
Warranty
Strengths and watch-outs
Strengths
- Backed by Bosch Home Comfort Group, which says the 2025 deal took it past 25,000 associates and 33 plants worldwide
- Current US airHome models use R-32 (ENERGY STAR listings with 2026 availability dates)
- ENERGY STAR lists airHome 600, 800 and Multi Pro combinations as cold-climate
Watch-outs
- Ownership changed in 2025: Bosch now runs the business and uses the Hitachi name under licence; confirm who honours the warranty and supplies parts
- 'Hitachi' units come from two platforms (airHome, certified under Johnson Controls; airCore700 and 'Hi UNI', certified by Qingdao Hisense Hitachi), so ask which one a quote covers
- No North American warranty terms could be verified
- R-410A Hitachi 'Hi UNI' models were still ENERGY STAR-listed for the US and Canada in June 2026; confirm the refrigerant
Which rebates Hitachi models fit
Every model in these tables is ENERGY STAR certified, which is the federal equipment rule for the Home Electrification and Appliance Rebates where your state runs them. 56 Hitachi outdoor models also meet ENERGY STAR Cold Climate, which several utility programs require. The 25C tax credit ended for heat pumps placed in service after December 31, 2025.
Rebate rules by metro:
Recent news
- York-branded airCore700 ductless models (certified by Qingdao Hisense Hitachi) added to ENERGY STAR for the US energystar.gov ↗
- New R-32 Hitachi airHome 400 and 600 single-zone models certified to ENERGY STAR for the US (availability from April 2026) energystar.gov ↗
- Bosch completed the acquisition on July 31, 2025, taking long-term licences for the YORK and Hitachi brand names us.bosch-press.com ↗
- Bosch agreed to buy Johnson Controls' residential and light commercial HVAC business, including 100% of Johnson Controls-Hitachi Air Conditioning, for US$8 billion bosch-presse.de ↗
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Sources
Model counts and ratings: ENERGY STAR Certified Heat Pumps, updated October 19, 2026. Brand facts checked October 19, 2026 on:
- Bosch acquires residential and light commercial HVAC business from Johnson Controls and Hitachi (July 23, 2024)
- Bosch: acquisition completed (Aug 1, 2025)
- Bosch Home Comfort Group acquisition Q&A
- Bosch Home Comfort US press page
- YORK residential site, operated by BHC Residential & Light Commercial LLC
- ENERGY STAR heat pump product finder
- ENERGY STAR Certified Heat Pumps dataset (rows updated 2026-10-19)