GREE GWH09AGC-D3DNA1B/O
Matched with the GWH09QC-D3DN***/I indoor unit, this system is certified to the ENERGY STAR cold-climate criteria and publishes 9.50 HSPF2 and 25.00 SEER2, with 9,000 BTU/h of heating at 5°F.
Heating capacity of the GREE GWH09AGC-D3DNA1B/O at three outdoor temperatures, in BTU per hour. Paired with GWH09QC-D3DN***/I: 9,000 at 5°F, 8,800 at 17°F, 11,000 at 47°F.
- HSPF29.50Btu/Wh, seasonal heating
- SEER225.00Btu/Wh, seasonal cooling
- COP at 5°F1.80at that test point
- Capacity at 5°F9,000BTU/h
- Share of 47°F capacity81.8%ours: 5°F ÷ 47°F
What these numbers are and are not. SEER2, EER2, HSPF2 and the COP at 5°F are results from a standard rating procedure, measured at fixed temperatures and airflow in a laboratory. They are not predictions for your house, your climate or your winter. Two systems with the same HSPF2 can use different amounts of electricity in the same building, and the same system will perform differently in Boston and in Atlanta. Use the published capacity at 5°F to judge whether a system still produces heat on a cold night; use HSPF2 only to compare systems with each other.
GREE GWH09AGC-D3DNA1B/O published specifications
| Outdoor unit | GWH09AGC-D3DNA1B/O |
|---|---|
| Indoor unit | GWH09QC-D3DN***/I (Lomo) |
| Cold-climate certified | Yes |
| ENERGY STAR Most Efficient | Yes |
| SEER2 | 25.00 Btu/Wh |
| EER2 | 14.70 Btu/Wh |
| HSPF2 | 9.50 Btu/Wh |
| Cooling capacity | 9,100 BTU/h |
| Heating capacity at 47°F | 11,000 BTU/h |
| Heating capacity at 17°F | 8,800 BTU/h |
| Heating capacity at 5°F | 9,000 BTU/h |
| COP at 5°F | 1.80 |
| Compressor staging | Continuously variable |
| Refrigerant | R-410A |
| Date certified | 2025-10-17 |
| ENERGY STAR ID / AHRI reference | 2414676 / 207318103 |
| 5°F capacity as a share of 47°F (ours) | 81.8% |
| Capacity class (ours) | 9,000 BTU/h nominal |
Source. ENERGY STAR Certified Heat Pumps, U.S. EPA, retrieved 2026-10-16 from the dataset's Socrata API. Record identified by ENERGY STAR ID 2414676, AHRI reference 207318103. Certification partner: Gree Electric Appliances Inc. of Zhuhai. Model numbers are reproduced exactly as published, including the asterisks ENERGY STAR carries as the manufacturer's wildcard for trim variants.
Indoor units certified with identical figures
These indoor units are certified with the GWH09AGC-D3DNA1B/O at exactly the same published figures as the GWH09QC-D3DN***/I above, so they are listed here rather than repeated as separate tables: GWH09AGC-D3DN***/I (Pular).
What the published capacities say about cold weather
A heat pump moves heat from outdoor air, so the colder that air gets, the less heat there is to move. The dataset publishes capacity at three outdoor temperatures, and the shape between them is the single most useful thing on this page. For the GWH09AGC-D3DNA1B/O paired with the GWH09QC-D3DN***/I:
- At 47°F it delivers 11,000 BTU/h.
- At 17°F it delivers 8,800 BTU/h.
- At 5°F it delivers 9,000 BTU/h, which is 81.8% of the 47°F figure.
ENERGY STAR lists this system as meeting its cold-climate criteria, which the program describes as better low-temperature heating performance, suitable for use as a home's sole heating source. That is the program's judgement on the published test data, not a promise about any particular winter or any particular house.
Running cost for a 9,000 BTU/h system like this one
Worked as an illustration, not a quote: a house that burned 600 therms of gas in a year through an 80% AFUE furnace needed about 48.0 million BTU of delivered heat. At $1.50 a therm that gas cost $900. Delivering the same heat with a heat pump rated at 9.50 HSPF2 takes 5,053 kWh, which at $0.18 a kWh costs $909. The two costs are equal at $0.178 a kWh.
Those four prices are not your prices, and HSPF2 is a rating-condition figure rather than a seasonal measurement for your climate. Change every input in the running-cost calculator, which shows each formula as it works.
Comparable systems
Same nominal capacity class (9,000 BTU/h), closest published HSPF2 to this one. Colour marks cold-climate certification.
-
DELLA 048-C-TP-9K1V-24S-OUT
Cold-climate
HSPF2 9.50 · SEER2 23.00 · 7,100 BTU/h at 5°F
-
DELLA 048-C-TP-9K2V-24S-OUT
Cold-climate
HSPF2 9.50 · SEER2 23.00 · 7,100 BTU/h at 5°F
-
Mitsubishi Electric MUZ-GS09NAHZ***
Cold-climate
HSPF2 9.60 · SEER2 28.40 · 9,600 BTU/h at 5°F
-
Trane / Mitsubishi Electric MUZ-GS09NAHZ***
Cold-climate
HSPF2 9.60 · SEER2 28.40 · 9,600 BTU/h at 5°F
-
LG KUSAH091B
Cold-climate
HSPF2 9.20 · SEER2 21.00 · 7,700 BTU/h at 5°F
More: all 92 certified systems, or the explainer on SEER2 vs HSPF2.