SpecDirectory

GWH18AVEXF-D6DNA1A/O

GREE · HP - Mini or Multi Split

ENERGY STAR CertifiedAir-Source Heat Pumps →
SEER2

20–27.5BTU/Wh

HSPF2

8.8–10BTU/Wh

Cooling Capacity

18000–21000BTU/hr

Cold Climate

Yes

Cold climate certified
High SEER2ENERGY STAR Most Efficient

GREE GWH18AVEXF-D6DNA1A/O: SEER2 27.5 BTU/Wh, better than 97% of air-source heat pumps (category median 20 BTU/Wh).

SEER2: better than 99% of the 740 comparable models within 10% of this capacity. Their median is 20.5 BTU/Wh.

Where this model sits

Cooling21000BTU/hr
6000median 2400060000
SEER227.5BTU/Wh
15.2median 2035.1

Better than 97% of air-source heat pumps.

The GREE GWH18AVEXF-D6DNA1A/O is a 21000 BTU/hr hp - mini or multi split using R-32, a refrigerant with moderate global warming potential (GWP 675). At 27.5 BTU/Wh it ranks better than 97% of the 12,218 certified air-source heat pumps models. Among similar-sized air-source heat pumps (within 10% of its size), it is more efficient than the peer median of 20.5 BTU/Wh.

Specifications

Efficiency
SEER2 (best combination)27.5BTU/Wh
SEER2 (worst combination)20BTU/Wh
HSPF2 (best combination)10BTU/Wh
HSPF2 (worst combination)8.8BTU/Wh
EER2 (best combination)14.3BTU/Wh
COP at 5 °F1.80
Capacity
Cooling Capacity (max)21000BTU/hr
Cooling Capacity (min)18000BTU/hr
Heating at 47 °F21000BTU/hr
Heating at 17 °F19500BTU/hr
Heating at 5 °F18000BTU/hr
All 25 specifications
Configuration
Product TypeHP - Mini or Multi Split
Compressor StagingContinuously variable
Cold Climate CertifiedYes
Connected CapabilityNo
SeriesALL MATCH
Indoor-Unit Combinations Rated7
Refrigerant
TypeR-32
GWP RatingR-32 (GWP:675 | Lower GWP)
Identifiers
Model NumberGWH18AVEXF-D6DNA1A/O
ENERGY STAR IDES_1105164_GWH18AVEXF-D6DNA1A/O_11032025042803_29215416017
PartnerGree Electric Appliances Inc. of Zhuhai
Date Certified2026-03-17
Available From2025-10-30
MarketsUnited States, Canada

Documentation

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