Home / Comparisons / 12,000 and 24,000 BTU wall-mounted heat pumps
GREE EXTRÊME R32: the other names of the Airy platform
The GREE EXTRÊME R32 has four close relatives at 12,000 BTU in the NEEP “Airy” series. GREE AIRY, GREE SAPPHIRE and KINGHOME AIRY carry exactly its certified values; the TOSOT LOMOPLUS changes two of them. At 24,000 BTU, two GREE EXTRÊME certificates coexist with identical values. This page shows it all, figure by figure.
Four names, one set of values; a fifth that changes two.NEEP “Airy” series, seven AHRI certificates at 12,000 and 24,000 BTU, verified November 9, 2026.
EXTRÊME R32
GWH12AVDXE-D6DNA1B/I
GWH12AVDXE-D6DNA1B/O
AIRY R32
GWH12AVDXE-D6DNA1B/I
GWH12AVDXE-D6DNA1B/O
SAPPHIRE R32
Outdoor unit
SAP12HP230V1R32AO
AIRY R32
KW12XQ29S1DI
KW12XQ29S1DO
LOMOPLUS R32
Outdoor unit
TW12HAY32A1DO
12,000 or 24,000 BTU: two sizes, two similar profiles
Choose a size. Each bar shows the maximum capacity certified by NEEP at one temperature, in BTU/h and as a percentage of the unit’s certified cooling capacity. At −30 °C the proportion stays close: 71% for the 12,000 BTU, 77% for the 24,000 BTU, which is certified at 22,000 BTU/h in cooling.
AHRI-certified maximum capacities, published by NEEP and verified November 9, 2026. The percentage is calculated by AirGreen: maximum capacity ÷ cooling capacity certified at 35 °C (12,000 BTU/h for the 12,000 BTU, 22,000 BTU/h for the 24,000 BTU).
TOSOT LOMOPLUS: two values out of seventeen
Same NEEP “Airy” series, same certified cold performance. The gaps are at 8.3 °C, at maximum, and at −8.3 °C, at rated output. The bars use the same scale as the other 12,000 BTU names.
One estimate for the five 12,000 BTU names
AirGreen estimate for the same 12,000 BTU/h zone in Montréal, at Hydro-Québec Rate D, taxes included. The calculation uses HSPF2 Region V (8.0) and SEER2 (29.5), identical on all five 12,000 BTU certificates, including the TOSOT LOMOPLUS’s: despite its two differences, the amount is the same. Electric baseboards serve as the reference point.
How this amount is calculated
- Heat to supply over the winter. A zone whose heat loss reaches 12,000 BTU/h ( kW) at −23.1 °C, Montréal’s 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 (18 °C base) 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 the baseboards alike: 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 per 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 ceiling, since a variable-speed unit slows down once the room is at the right temperature.
- Price. Hydro-Québec Rate D in effect April 1, 2026: 7.065¢ per kWh up to 40 kWh a day, 11.142¢ beyond; the average price, 9.104¢, is the one Hydro-Québec’s calculators use. GST and QST included. Grid access charges, the same with or without a heat pump, are not counted.
AirGreen method v1.1, November 9, 2026. An estimate is for comparing units under the same conditions. The actual bill depends on the house, insulation, settings and use; this amount is not a promise.
Same certificates, different documents
The certified values agree; the manufacturers’ documents, much less so. Here are the six points noted while reading each source.
EXTRÊME and AIRY: one certificate
The GREE EXTRÊME R32 and the GREE AIRY R32 carry the same model numbers (GWH12AVDXE-D6DNA1B) and the same AHRI certificate 215386290. They are two trade names for the same certified combination.
SAPPHIRE and KINGHOME AIRY: their own certificates, the same values
The GREE SAPPHIRE (214810380) and the KINGHOME AIRY (217903558) each have their own certificate and outdoor unit, with NEEP values identical, row for row, to the EXTRÊME’s.
The SEER2 on the GREE sheets: 28.0
The GREE Canada EXTRÊME sheets print a SEER2 of 28.0; AHRI certificate 215386290 gives 29.5. This page follows the certificate.
ENERGY STAR: NEEP and the directory disagree for KINGHOME
NEEP shows ENERGY STAR for the EXTRÊME, the AIRY and the SAPPHIRE, but not for the KINGHOME AIRY. Yet the ENERGY STAR directory lists the KW12XQ29S1DI + KW12XQ29S1DO combination (AHRI 217903558) as cold climate, certified May 28, 2026.
24,000 BTU: two certificates, the same figures
At 24,000 BTU, the GREE EXTRÊME exists under two certificates, 215278609 (outdoor unit …A1A/O) and 215386339 (…A1B/O). Their NEEP values are identical: SEER2 27.0, HSPF2 10.0 / 8.5, 17,000 BTU/h maximum at −30 °C.
The 24,000 BTU is certified at 22,000 BTU/h
In cooling at 35 °C, the two 24,000 BTU certificates give 22,000 BTU/h. Measured against that value, the certified maximum at −30 °C is 77% (17,000 BTU/h), versus 71% at 12,000 BTU (8,500 out of 12,000). This is AirGreen’s calculation from NEEP values.
Same model numbers, three ways of publishing sound
AHRI certificates do not measure sound. The GREE EXTRÊME and the GREE AIRY carry the same model numbers, but their documents do not publish the same figures: they do not describe the same measurement.
Measurements published by each document using its own method: read them separately, not as a ranking.
No TOSOT LOMOPLUS R32 document was found at the verification date. The GREE Canada documents give 55 dB(A) outdoors, the AIRY brochure 65 dB(A).
What people ask about the Airy platform
GREE EXTRÊME R32 and GREE AIRY R32: is it the same certificate?
Yes. They carry the same model numbers, GWH12AVDXE-D6DNA1B/I and /O, and the same AHRI certificate 215386290.
Do the GREE SAPPHIRE and KINGHOME AIRY have the same values as the EXTRÊME?
Yes, at 12,000 BTU: their certificates (214810380 and 217903558) carry the same NEEP values, row for row, as the EXTRÊME. Their outdoor units, remotes and warranties may differ.
What changes with the TOSOT LOMOPLUS R32?
Two values: its maximum capacity at 8.3 °C (18,766 BTU/h instead of 16,200, COP 3.67 instead of 3.77) and its rated capacity at −8.3 °C (10,300 BTU/h instead of 13,000, rated COP 3.11 instead of 2.06). Everything else, including −15 °C and −30 °C, is identical.
Down to what temperature are they certified?
Down to −30 °C: 8,500 BTU/h maximum at 12,000 BTU (COP 1.75) and 17,000 BTU/h at 24,000 BTU (COP 1.62), according to NEEP.
Why does the published sound differ between the EXTRÊME and the AIRY?
The GREE Canada EXTRÊME sheets give 19 to 43 dB(A) over eight levels; the AIRY brochure gives 52/49/39 dB(A) over three speeds. Neither document states the method; the figures probably do not describe the same measurement and cannot be compared.
Why is the GREE EXTRÊME 24,000 BTU certified at 22,000 BTU/h?
It is the cooling capacity at 35 °C listed on its two AHRI certificates (215278609 and 215386339), published by NEEP. The trade name rounds to the size class; in heating, the certified maximum reaches 32,000 BTU/h at 8.3 °C.
Does the operating cost change from one name to another?
No, at 12,000 BTU: all five certificates have the same HSPF2 Region V (8.0) and the same SEER2 (29.5).
Are they eligible for rebates?
Eligibility depends on the official list in effect on the date of purchase. This page promises no amount; the current list is checked at the time of the quote.
All AHRI and NEEP values
The four names in the first column have identical values row by row, on three certificates. The TOSOT LOMOPLUS has its own certificate; the last column gives the 24,000 BTU size, certified at 22,000 BTU/h in cooling.
| Certified value | 12,000 BTU · EXTRÊME, AIRY, SAPPHIRE, KINGHOME AIRY | 12,000 BTU · TOSOT LOMOPLUS | 24,000 BTU · EXTRÊME (A1A and A1B) |
|---|---|---|---|
| Cooling and seasonal | |||
| Rated capacity at 35 °C | 12,000 BTU/h | 12,000 BTU/h | 22,000 BTU/hSold as a 24,000 BTU. |
| SEER2 · EER2 | 29.5 · 15.2 | 29.5 · 15.2 | 27.0 · 13.95 |
| HSPF2 Region IV / V | 10.0 / 8.0 | 10.0 / 8.0 | 10.0 / 8.5 |
| Heating | |||
| 8.3 °C: min. / rated / max.BTU/h | 3,270 / 12,200 / 16,200 | 3,270 / 12,200 / 18,766 | 5,800 / 24,000 / 32,000 |
| 8.3 °C: COP min. / rated / max. | 5.04 / 4.53 / 3.77 | 5.04 / 4.53 / 3.67 | 4.05 / 3.91 / 3.20 |
| −8.3 °C: min. / rated / max.BTU/h | 2,800 / 13,000 / 13,000 | 2,800 / 10,300 / 13,000 | 5,800 / 23,000 / 24,000 |
| −8.3 °C: COP min. / rated / max. | 4.32 / 2.06 / 2.06 | 4.32 / 3.11 / 2.06 | 3.21 / 2.94 / 1.94 |
| −15 °C: min. / rated / max.BTU/h | 2,600 / 12,200 / 12,200 | 2,600 / 12,200 / 12,200 | 3,400 / 24,000 / 24,000 |
| −15 °C: COP min. / rated / max. | 4.23 / 2.00 / 2.00 | 4.23 / 2.00 / 2.00 | 2.49 / 1.80 / 1.80 |
| −30 °C: min. / max.BTU/h, coldest point | 2,600 / 8,500 | 2,600 / 8,500 | 1,720 / 17,000 |
| −30 °C: COP min. / max. | 4.23 / 1.75 | 4.23 / 1.75 | 2.29 / 1.62 |
| ENERGY STAR · cold climate (NEEP fields) | Yes · yesKINGHOME AIRY: no · yes in NEEP; listed in the ENERGY STAR directory, cold climate, on May 28, 2026. | Yes · yes | Yes · yes |
| Identification | |||
| AHRI certificate · NEEP record | 215386290 · 389444 (EXTRÊME, AIRY); 214810380 · 392730 (SAPPHIRE); 217903558 · 427149 (KINGHOME AIRY) | 215405583 · 389357 | 215278609 · 391946; 215386339 · 389442 |
| Outdoor unit | GWH12AVDXE-D6DNA1B/O (EXTRÊME, AIRY); SAP12HP230V1R32AO (SAPPHIRE); KW12XQ29S1DO (KINGHOME AIRY) | TW12HAY32A1DO | GWH24AVEXH-D6DNA1A/O; GWH24AVEXH-D6DNA1B/O |
| RefrigerantGWP per IPCC (AR4); ASHRAE 34 class | R-32 · GWP 675 · A2L | R-32 · GWP 675 · A2L | R-32 · GWP 675 · A2L |
AHRI values published by NEEP (ashp.neep.org), verified November 9, 2026. A yellow cell marks a value that is not the same in every column; it is not a recommendation.
These names are on AirGreen’s site.
To choose the size and the name for your room, talk to our team: bring the room’s dimensions, the planned outdoor location and your current heating.
Where each figure comes from
Data verified November 9, 2026. Performance: AHRI certificates and the NEEP database; listing: ENERGY STAR directory where cited. Dimensions, sound, piping and features: per the manufacturer. When a source contradicts the AHRI certificate, the certificate prevails.
Trademarks. GREE, EXTRÊME, AIRY, SAPPHIRE, KINGHOME, TOSOT and LOMOPLUS 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 product images, for identification. Promotional badges and panels on the images are masked.
Does a figure look wrong? Write to us: every reported value is checked again.