Home / Comparisons / 12,000 BTU wall-mounted heat pumps
GREE EXTRÊME R32 and GREE CROSSOVER R32: what changes from one series to the next
Two 12,000 BTU GREE wall units on R‑32, ENERGY STAR cold climate certified and sold by AirGreen. They come from two different certified platforms, each sold under several names. Both are certified at −30 °C, so they can be compared at the same temperature, all the way down.
EXTRÊME R32 12,000 BTU
GWH12AVDXE-D6DN***/I / GWH12AVDXE-D6DNA1B/O · AHRI 215386290
See the product page
CROSSOVER R32 12,000 BTU
GWH12AGCXD-D6DN***/I / GWH12AGCXD-D6DNA4D/O · AHRI 215402266
See the product pageWhat the electricity costs, in dollars, winter and summer
AirGreen estimate for the same 12,000 BTU/h zone in Montréal, at Hydro-Québec Rate D, taxes included. Both heat pumps are calculated exactly the same way, with the same method as on all our comparison pages; only their certified efficiencies change. Electric baseboards serve as a reference point.
How this amount is calculated
- Heat needed over the winter. A zone whose heat loss reaches 12,000 BTU/h ( kW) at −23.1 °C, the Montréal design temperature: kW × 24 h × 4,167 degree-days ÷ (18 − (−23.1)) = kWh of heat for round-the-clock heating, all winter. Heating degree-days (base 18 °C) and design temperature: Natural Resources Canada, HOT2000 climate data, Montréal Intl station. With fewer hours a day (“Heating” slider), the heat is reduced in the same proportion, for the heat pump and for the baseboards alike: this is a simplification that ignores the recovery after a temperature setback.
- Electricity for heating. Heat pump: heat × 3.412 ÷ HSPF2 Region V, the AHRI certificate value published by NEEP. Region V is the coldest in the standard, and its calculation includes the electric backup expected when the heat pump is no longer enough. Electric baseboards: 1 kWh of electricity for 1 kWh of heat.
- Electricity for cooling. 12,000 BTU/h ÷ SEER2 × hours a day × 60 days ÷ 1,000: the method of Hydro-Québec’s air-conditioning calculator, with the SEER2 seasonal efficiency from the AHRI certificate. The number of hours is a scenario, adjustable above from 1 to 24 h. At 24 h, the calculation assumes rated capacity all day: that is a maximum, since a variable-speed unit slows down once the room is at the right temperature.
- Price. Hydro-Québec Rate D in effect on April 1, 2026: 7.065¢ per kWh up to 40 kWh a day, 11.142¢ beyond that; the average price, 9.104¢, is the one Hydro-Québec’s calculators use. GST and QST included. Network access charges, the same with or without a heat pump, are not counted.
AirGreen method v1.1, November 9, 2026. An estimate is meant to compare units under the same conditions. The actual bill depends on the house, insulation, settings and use; this amount is not a promise.
Both have the same certified HSPF2 Region V, 8.0: in this calculation, winter costs the same. The gap comes from summer, where the SEER2 values are 29.5 and 24.5.
Two GREE families, two certified platforms
In its 12,000 BTU R-32 wall units, GREE sells the same certified platform under several names. The EXTRÊME R32 belongs to the platform NEEP calls “Airy”; the CROSSOVER R32 is listed under “Pular”, in the “Clivia” family. The indoor unit, the remote and the warranty can vary from one name to another; the certified values stay together.
“Charmo” platform
NEEP Charmo series
- GREE VITA R32 (230 V): same AHRI certificate as the GREE CHARMO R32
- KINGHOME CHARMO R32, GREE LIVO R32: same NEEP certified values
“Clivia” family
CROSSOVER: NEEP Pular series
- GREE VIREO R32: same certified values as the CROSSOVER
- GREE CLIVIA, GREE ENVO, KINGHOME CLIVIA: same series, a few differences at 8.3 and −8.3 °C
“Airy” platform
NEEP Airy series
- GREE AIRY R32: same AHRI certificate as the EXTRÊME
- GREE SAPPHIRE R32, KINGHOME AIRY R32: same NEEP certified values
The certified gap between the two platforms compared here
Bars on the same scale for both units, row by row. NEEP values for certificates 215386290 (EXTRÊME R32, record 389444) and 215402266 (CROSSOVER R32, record 389378), accessed November 9, 2026. The other names are grouped from the series and values listed in NEEP (November 5, 2026).
Below −15 °C: two certified points for each, at the same temperatures
NEEP certifies both units at −15 °C and at −30 °C: the direct comparison holds down to the coldest point. In between, no point is certified; the table gives the range between the two published values and, for the EXTRÊME R32, the curve from the GREE service manual.
What each GREE brochure names
GREE Canada EXTRÊME R32 and CROSSOVER R32 brochures, French edition (document no. 032025). One card per topic, in GREE’s words for each series.
EXTRÊME R32: heating stated down to −30 °C; automatic defrost; outdoor unit base pan heater (service manual).
CROSSOVER R32: heating stated down to −30 °C.
EXTRÊME R32: down to −29 °C outdoors.
CROSSOVER R32: down to −29 °C outdoors.
EXTRÊME R32: “G-AI Learning”.
CROSSOVER R32: the brochure names no particular mode.
EXTRÊME R32: Wi-Fi (app not named); YBE1FB1F remote.
CROSSOVER R32: Wi-Fi (app not named); YBE1FB1F remote.
EXTRÊME R32: “low-voltage start-up”; automatic restart (service manual).
CROSSOVER R32: “low-voltage start-up”.
EXTRÊME R32: washable filters; “G10 Inverter”.
CROSSOVER R32: washable filters; “G10 Inverter”; fins with anti-corrosion coating.
How loud each one is, according to GREE
GREE publishes eight sound pressure levels for each indoor unit, with no speed names. Both end at 43 dB(A); the EXTRÊME R32 starts at 19 dB(A), the CROSSOVER R32 at 20 dB(A).
How to read these figures. dB(A) measures a noise level as the ear perceives it: the lower the figure, the quieter the unit. Each dot is a published fan level, from slowest to fastest.
Why this is not a ranking. GREE publishes neither the distance nor the measuring conditions, and the eight levels do not necessarily match the same airflow from one series to the other.
Indoor unit, in the room
The eight published levels
Outdoor unit, outside
Published value
Measurements published by GREE for each series, with no conditions stated: read them as reference points, not as a ranking.
On the wall, outside, in the piping
Indoor units to scale
The EXTRÊME R32 indoor unit is 5 11/16 in wider, and also taller and deeper, at 33.1 lb versus 20.9 lb.
| Installation | EXTRÊME R32 | CROSSOVER R32 |
|---|---|---|
| Maximum piping length | 131.2 ftEXTRÊME brochure. The GREE Airy R32 service manual gives 65.6 ft for the 12,000 BTU: to be confirmed with your quote. | 65.6 ft |
| Precharged length | 24.6 ftGREE AIRY R32 brochure and service manual (same model numbers). | Not published by the manufacturer. |
| Maximum height difference | 82 ftService manual: 32.8 ft. | 39.4 ft |
| Liquid – gas diameters | 1/4 – 1/2 in | 1/4 – 1/2 in |
| Outdoor unit W × H × D, weight | 34 3/8 × 21 27/32 × 14 51/64 in, 78.3 lb | 31 37/64 × 21 27/32 × 13 25/32 in, 67.3 lb |
| Indoor unit, weight | 33.1 lb | 20.9 lb |
| Electrical protectionPer the manufacturer | MOP 15 A (MCA 11 A) | MOP 15 A (MCA 10 A) |
| Dehumidification | 1.4 L/h | 1.4 L/h |
| Stated heating / cooling range | −30 to 30 °C / −29 to 50 °C | −30 to 30 °C / −29 to 50 °C |
GREE Canada brochures (document no. 032025); for the EXTRÊME R32, also the GREE AIRY R32 brochure and the GREE Airy Inverter R32 service manual, which cover the same model numbers. The GREE R32 outdoor unit owner’s manual (X40270A_2, p. 8) gives the clearances in a figure; the installer confirms them on site.
What people ask about these two GREE wall units
Why is the winter cost the same for both?
This page’s calculation uses HSPF2 Region V from the AHRI certificate. Both certificates give 8.0. In Region IV, which is milder, they differ: 10.0 and 9.5. The gap in annual cost therefore comes from cooling, with SEER2 values of 29.5 and 24.5.
Which one delivers more heat at −30 °C?
According to NEEP, 8,500 BTU/h maximum for the EXTRÊME R32 (COP 1.75) and 7,300 BTU/h for the CROSSOVER R32 (COP 1.51), at the same temperature. At −15 °C, 12,200 and 11,000 BTU/h.
GREE EXTRÊME, AIRY, SAPPHIRE: what is the difference?
At 12,000 BTU, these models have the same AHRI and NEEP certified values; the EXTRÊME and the AIRY even share certificate 215386290. The indoor unit, the remote, the app and the warranty can differ from one name to another.
And the GREE VIREO, compared with the CROSSOVER?
NEEP lists the same certified values for the GREE VIREO R32 and the GREE CROSSOVER R32 at 12,000 BTU. The GREE CLIVIA, the GREE ENVO and the KINGHOME CLIVIA are from the same series, with a few differences at the 8.3 and −8.3 °C points.
The EXTRÊME brochure says SEER2 28.0: why does this page say 29.5?
GREE Canada brochure no. 032025 prints 28.0. AHRI certificate 215386290, repeated by NEEP and ENERGY STAR, shows 29.5. When sources disagree, this page follows the certificate.
Are they eligible for rebates?
Eligibility depends on the official list in force on the date of purchase. This page promises no amount; the current list is checked when you get your quote.
All AHRI and NEEP values
| Certified value | EXTRÊME R32 | CROSSOVER R32 |
|---|---|---|
| Cooling | ||
| Rated capacity at 35 °C | 12,000 BTU/h | 12,000 BTU/h |
| SEER2 | 29.5 | 24.5 |
| EER2 | 15.2 | 13.0 |
| Heating, same conditions | ||
| HSPF2 Region IV / V | 10.0 / 8.0 | 9.5 / 8.0 |
| 8.3 °C: min. / rated / max.BTU/h | 3,270 / 12,200 / 16,200 | 3,070 / 12,000 / 14,600 |
| 8.3 °C: COP at min., rated, max. | 5.04 / 4.53 / 3.77 | 5.62 / 3.78 / 3.72 |
| −8.3 °C: min. / rated / max.BTU/h | 2,800 / 13,000 / 13,000 | 2,700 / 12,000 / 12,000 |
| −8.3 °C: COP at min., rated, max. | 4.32 / 2.06 / 2.06 | 3.04 / 2.14 / 2.06 |
| −15 °C: min. / rated / max.BTU/h | 2,600 / 12,200 / 12,200 | 2,600 / 11,000 / 11,000 |
| −15 °C: COP at min., rated, max. | 4.23 / 2.00 / 2.00 | 3.17 / 1.95 / 1.95 |
| Coldest point — the same temperature for both, not highlighted | ||
| Test temperature | −30 °C (−22 °F) | −30 °C (−22 °F) |
| Capacity min. / max. | 2,600 / 8,500 BTU/h | 2,000 / 7,300 BTU/h |
| COP at maximum output | 1.75 | 1.51 |
| Certifications and refrigerant | ||
| ENERGY STAR / cold climate | Yes / Yes | Yes / Yes |
| ENERGY STAR directory, markets listed | United States | United States |
| AHRI certificate · NEEP record | 215386290 · 389444 | 215402266 · 389378 |
| RefrigerantGWP per the IPCC (AR4); ASHRAE 34 class | R-32 · GWP 675 · A2L | R-32 · GWP 675 · A2L |
higher marks the higher value of the same measurement, under the same conditions. It is not a recommendation. Capacities and COPs by test point are not highlighted: the order changes with the point you read.
Both are on the AirGreen website.
To choose for your room, talk it over with our team: bring the room dimensions, the planned outdoor location and your current heating.
Where each figure comes from
Data checked November 9, 2026. Performance: AHRI certificates and the NEEP database. Dimensions, sound, piping and features: per the manufacturer. When a source contradicts the AHRI certificate, the certificate prevails.
Trademarks. GREE, EXTRÊME, CROSSOVER, AIRY, SAPPHIRE, VIREO, CLIVIA, ENVO, CHARMO, VITA, LIVO and KINGHOME are trademarks of their respective owners. Logos are used only to identify the products compared. AirGreen is a retailer of these brands; this page is not produced, sponsored or endorsed by the manufacturers.
Photos: AirGreen and manufacturers, for identification.
Does a figure look wrong? Write to us: every reported figure is rechecked.