-
Added to comparison
-
Added to comparison
-
Added to comparison
-
Added to comparison
-
Added to comparison
-
Added to comparison
Altair 300: the Fujitsu R-32 wall unit that also runs on 115 V.
The FUJITSU AIRSTAGE entry series, and Fujitsu’s only R-32 wall unit offered in 115 V, at 9,000 and 12,000 BTU/h. The lightest too: 7 kg for the 9,000 indoor unit. It heats down to -15 °C and cools from 10 °C. Only one size is ENERGY STAR certified, the 18,000: $1,488 in indicative LogisVert.
Altair, in the Eagle
Altair and its two neighbours in the constellation of the Eagle, placed from the catalogue. Fujitsu does not explain its series names.
Light, simple, and the only one on 115 V.
Six facts from Fujitsu documents and the ENERGY STAR list. Sources are at the bottom of the page.
It is Fujitsu’s only R-32 wall series offered in 115 V, in 9,000 and 12,000 BTU/h.
The 9,000 indoor unit weighs 7 kg, the lightest of Fujitsu’s five R-32 wall series.
Only the 18,000 is ENERGY STAR certified, and it carries the Cold Climate mark: $1,488 of LogisVert.
The Altair 300 18,000 earns more LogisVert than the Altair 500 18,000, even though the latter heats more at -15 °C.
It cools from 10 °C outdoors, up to 50 °C (52 °C in 115 V).
The 9,000 holds only 530 g of R-32 refrigerant.
Standard-Tier: the entry series.
It heats down to -15 °C, like the two other Altair. For a room heated all winter, look at an Orion; to cool a bedroom or an office, the Altair 300 does the job.
Four sizes at 230 V, two at 115 V.
Tap a model: photo, link to the product sheet, heat at -15 °C, efficiency and LogisVert amount. The 115 V models are marked in the picker.
| Model | Heats down to | Max at -15 °C | SEER2 | HSPF2 | LogisVert | AHRI |
|---|---|---|---|---|---|---|
| Altair 300 9,000 BTU/h 115 V | -15 °C | 6,800 BTU/h | 17 | 9 | $0 | 215422283 |
| Altair 300 9,000 BTU/h | -15 °C | 7,000 BTU/h | 18 | 9 | $0 | 217505655 |
| Altair 300 12,000 BTU/h 115 V | -15 °C | 8,200 BTU/h | 17 | 9 | $0 | 215422284 |
| Altair 300 12,000 BTU/h | -15 °C | 8,800 BTU/h | 18 | 9 | $0 | 217505656 |
| Altair 300 18,000 BTU/h | -15 °C | 14,500 BTU/h | 20 | 9 | $1,488 | 217617837 |
| Altair 300 24,000 BTU/h | -15 °C | 16,000 BTU/h | 20 | 9 | $0 | 217617836 |
The indoor unit, to scale
Front face drawn to scale, with the 1 m ruler. Dimensions: width × height × depth, according to Fujitsu.
A 115 V outlet is enough at 9,000 and 12,000.
Switch between 115 V and 230 V: what really changes, and what stays the same, per Fujitsu’s sheets.
| 115 V | 230 V | |
|---|---|---|
| Breaker | 9,000: 20 A · 12,000: 20 A | 9,000: 15 A · 12,000: 15 A |
| Max heat at -15 °C | 9,000: 6,800 BTU/h · 12,000: 8,200 BTU/h | 9,000: 7,000 BTU/h · 12,000: 8,800 BTU/h |
| SEER2 | 9,000: 17 · 12,000: 17 | 9,000: 18 · 12,000: 18 |
| Cooling up to | 52 °C | 50 °C |
| Same | size, weight, charge, sound, ENERGY STAR ratings | size, weight, charge, sound, ENERGY STAR ratings |
A licensed electrician confirms the circuit at installation. Only the 9,000 and 12,000 come in 115 V.
7 kg: the lightest of Fujitsu’s R-32 wall units.
The weight of the 9,000 BTU/h indoor unit, series by series. Lighter means easier to mount on a thin wall.
Down to -15 °C.
The bars show the maximum published heat; the red tick, the ENERGY STAR value, published only for the certified 18,000; the dotted line, the nominal size.
| Size | 8.3 °C | -8.3 °C | -15 °C |
|---|---|---|---|
| 9,000 · 115 V BTU/h | 12,400 BTU/h | 8,550 BTU/h | 6,800 BTU/h |
| 9,000 BTU/h | 12,400 BTU/h | 8,550 BTU/h | 7,000 BTU/h |
| 12,000 · 115 V BTU/h | 13,900 BTU/h | 10,100 BTU/h | 8,200 BTU/h |
| 12,000 BTU/h | 13,900 BTU/h | 10,100 BTU/h | 8,800 BTU/h |
| 18,000 BTU/h | 22,500 BTU/h | 16,500 BTU/h | 14,500 BTU/h |
| 24,000 BTU/h | 26,000 BTU/h | 18,200 BTU/h | 16,000 BTU/h |
Operating ranges
Outdoor operating temperatures published by Fujitsu.
The essentials, nothing extra.
What Fujitsu puts in the Altair 300. Wi-Fi is optional, with the UTY-TFSXH4 adapter.
Optional Wi-Fi: Fujitsu’s UTY-TFSXH4 USB adapter adds the AIRSTAGE Mobile app.
No automatic cut-out in cold weather, according to Fujitsu.
Powerful mode: 20 minutes at maximum airflow and compressor speed.
Four fan speeds, plus auto.
Cools from 10 °C outdoors.
115 V version, for homes with limited electrical service.
10 °C minimum heat mode, available through the app only, with the Wi-Fi adapter.
From 20 dB(A) at 9,000 and 12,000.
Place each model on the scale of everyday sounds.
| Model | Indoor, quiet speed | Indoor, high speed | Outdoor unit |
|---|---|---|---|
| Altair 300 9,000 BTU/h 115 V | 20 dB(A) | 41 dB(A) | 46 dB(A) |
| Altair 300 9,000 BTU/h | 20 dB(A) | 41 dB(A) | 46 dB(A) |
| Altair 300 12,000 BTU/h 115 V | 20 dB(A) | 41 dB(A) | 48 dB(A) |
| Altair 300 12,000 BTU/h | 20 dB(A) | 41 dB(A) | 48 dB(A) |
| Altair 300 18,000 BTU/h | 28 dB(A) | 48 dB(A) | 53 dB(A) |
| Altair 300 24,000 BTU/h | 31 dB(A) | 49 dB(A) | 55 dB(A) |
Levels published by Fujitsu, measured in a lab; at home, the room, the furniture and the distance change what you hear. Scale: Government of Québec reference points.
Altair 300 against Altair 500: the LogisVert surprise.
Same size, two series. At 18,000, the Altair 300 earns more LogisVert, but the Altair 500 heats more at -15 °C. The LogisVert amount does not rank wall units in deep cold.
Altair 300 · 18,000 vs Altair 500 · 18,000
| Altair 300 · 18,000 | Altair 500 · 18,000 | |
|---|---|---|
| Heats down to | -15 °C | -15 °C |
| Max heat at -15 °C | 14,500 BTU/h | 18,500 BTU/h |
| SEER2 | 20 | 22 |
| HSPF2 | 9 | 10.5 |
| Lowest indoor sound | 28 dB(A) | 26 dB(A) |
| Indoor weight | 10.5 kg | 12.5 kg |
| Max line set | 25 m | 30 m |
| Indicative LogisVert | $1,488 | $1,356 |
The LogisVert surprise: $1,488 for the Altair 300 against $1,356, while the Altair 500 gives more heat at -15 °C.
Altair 300 · 24,000 vs Altair 500 · 24,000
| Altair 300 · 24,000 | Altair 500 · 24,000 | |
|---|---|---|
| Heats down to | -15 °C | -15 °C |
| Max heat at -15 °C | 16,000 BTU/h | 20,000 BTU/h |
| SEER2 | 20 | 21.5 |
| HSPF2 | 9 | 10 |
| Lowest indoor sound | 31 dB(A) | 31 dB(A) |
| Indoor weight | 12.5 kg | 12.5 kg |
| Max line set | 25 m | 30 m |
| Indicative LogisVert | $0 | $1,776 |
Same indoor size, but $0 of LogisVert against $1,776: the Altair 300 24,000 is not ENERGY STAR certified.
Altair 300 · 12,000 vs Altair 500 · 12,000
| Altair 300 · 12,000 | Altair 500 · 12,000 | |
|---|---|---|
| Heats down to | -15 °C | -15 °C |
| Max heat at -15 °C | 8,800 BTU/h | 8,500 BTU/h |
| SEER2 | 18 | 24 |
| HSPF2 | 9 | 10.5 |
| Lowest indoor sound | 20 dB(A) | 19 dB(A) |
| Indoor weight | 7.5 kg | 9.5 kg |
| Max line set | 20 m | 20 m |
| Indicative LogisVert | $0 | $435 |
At 12,000: SEER2 18 vs 24.0, and $0 vs $435; the Altair 300 is lighter and comes in 115 V.
From 20 to 25 m of line set depending on size.
Drag the sliders to place the outdoor unit: the tool applies Fujitsu’s limits for each model.
| Model | Max length | Max height | Pre-charge | Minimum |
|---|---|---|---|---|
| Altair 300 9,000 BTU/h 115 V | 20 m | 15 m | 15 m | 3 m |
| Altair 300 9,000 BTU/h | 20 m | 15 m | 15 m | 3 m |
| Altair 300 12,000 BTU/h 115 V | 20 m | 15 m | 15 m | 3 m |
| Altair 300 12,000 BTU/h | 20 m | 15 m | 15 m | 3 m |
| Altair 300 18,000 BTU/h | 25 m | 20 m | 15 m | 3 m |
| Altair 300 24,000 BTU/h | 25 m | 20 m | 15 m | 3 m |
One eligible size: the 18,000.
Since November 26, 2025, LogisVert requires ENERGY STAR. Only the 18,000 is certified, and it carries the cold-climate mark: $120 per 1,000 BTU/h of heat rated at -8 °C.
| Model | Indicative amount | Calculation |
|---|---|---|
| Altair 300 9,000 BTU/h 115 V | $0 | – |
| Altair 300 9,000 BTU/h | $0 | – |
| Altair 300 12,000 BTU/h 115 V | $0 | – |
| Altair 300 12,000 BTU/h | $0 | – |
| Altair 300 18,000 BTU/h | $1,488 | 12,400 BTU/h ÷ 1,000 × $120 = $1,488 |
| Altair 300 24,000 BTU/h | $0 | – |
Since November 26, 2025, only ENERGY STAR certified heat pumps qualify.
The outdoor unit must be at least 12,000 BTU/h nominal in cooling.
The grant never exceeds the purchase and installation cost, before taxes.
You apply no later than nine months after installation.
July 8, 2027
LogisVert residential participation guide, version 1.10 of September 15, 2026. Indicative amounts, calculated with the ENERGY STAR value at -8 °C (17 °F); only Hydro-Québec confirms the grant, with the AHRI number.
The six models, line by line.
| Altair 300 9,000 BTU/h 115 V | Altair 300 9,000 BTU/h | Altair 300 12,000 BTU/h 115 V | Altair 300 12,000 BTU/h | Altair 300 18,000 BTU/h | Altair 300 24,000 BTU/h | |
|---|---|---|---|---|---|---|
| Indoor unit | ASLH09KNAS | ASUH09KNAS | ASLH12KNAS | ASUH12KNAS | ASUH18KNAS | ASUH24KNAS |
| Outdoor unit | AOLH09KNAS1 | AOUH09KNAS1 | AOLH12KNAS1 | AOUH12KNAS1 | AOUH18KNAS1 | AOUH24KNAS1 |
| AHRI number | 215422283 | 217505655 | 215422284 | 217505656 | 217617837 | 217617836 |
| Heats down to | -15 °C | -15 °C | -15 °C | -15 °C | -15 °C | -15 °C |
| Rated heating | 9,000 BTU/h | 9,000 BTU/h | 12,000 BTU/h | 12,000 BTU/h | 18,000 BTU/h | 24,000 BTU/h |
| Rated cooling | 9,000 BTU/h | 9,000 BTU/h | 12,000 BTU/h | 12,000 BTU/h | 18,000 BTU/h | 22,000 BTU/h |
| SEER2 | 17 | 18 | 17 | 18 | 20 | 20 |
| EER2 | 10.6 | 10.6 | 10.2 | 10.3 | 11 | 10.5 |
| HSPF2 | 9 | 9 | 9 | 9 | 9 | 9 |
| Indoor sound (min / max) | 20 / 41 dB(A) | 20 / 41 dB(A) | 20 / 41 dB(A) | 20 / 41 dB(A) | 28 / 48 dB(A) | 31 / 49 dB(A) |
| Outdoor sound | 46 dB(A) | 46 dB(A) | 48 dB(A) | 48 dB(A) | 53 dB(A) | 55 dB(A) |
| Indoor, w×h×d | 770×250×218 mm | 770×250×218 mm | 770×250×218 mm | 770×250×218 mm | 834×270×239 mm | 980×280×240 mm |
| Outdoor, w×h×d | 663×541×290 mm | 663×541×290 mm | 663×541×290 mm | 663×541×290 mm | 799×542×290 mm | 799×632×290 mm |
| Weight in / out | 7 / 23 kg | 7 / 23 kg | 7.5 / 25 kg | 7.5 / 25 kg | 10.5 / 33 kg | 12.5 / 36 kg |
| Max line set / height | 20 / 15 m | 20 / 15 m | 20 / 15 m | 20 / 15 m | 25 / 20 m | 25 / 20 m |
| Breaker | 20 A | 15 A | 20 A | 15 A | 15 A | 20 A |
| Refrigerant charge | 0.5 kg | 0.5 kg | 0.7 kg | 0.7 kg | 0.9 kg | 1.2 kg |
| ENERGY STAR | Not ENERGY STAR listed | Not ENERGY STAR listed | Not ENERGY STAR listed | Not ENERGY STAR listed | ENERGY STAR cold climate | Not ENERGY STAR listed |
| Indicative LogisVert | $0 | $0 | $0 | $0 | $1,488 | $0 |
Data from Fujitsu submittal sheets and manuals, the ENERGY STAR list and the NEEP list, read October 8, 2026. Dimensions in millimetres: width × height × depth.
Small wall unit, big surprises.
The Altair 300 is Fujitsu’s only R-32 wall series offered in 115 V.
Source: FujitsuThe 9,000 indoor unit weighs 7 kg, the lightest of Fujitsu’s five R-32 wall series.
Source: FujitsuIn this series, only the 18,000 is ENERGY STAR certified, and it also carries the Cold Climate mark.
Source: ENERGY STARThe Altair 300 18,000 earns more LogisVert than the Altair 500 18,000, even though the latter heats more at -15 °C.
Source: ENERGY STAR, NEEP, Hydro-QuébecThe 9,000 holds only 530 g of R-32 refrigerant.
Source: FujitsuThe Altair 8800, one of the first home computers, was named after the star Altair, NASA notes.
Source: NASA, IAUUp to 12 years on parts and compressor.
The longest tier needs online registration within 60 days and a Fujitsu Elite contractor. At AirGreen, both are done for you.
In Québec, the basic warranty needs no registration; the 10- and 12-year tiers do. Source: Fujitsu limited warranty statement (R-32).
We register your unit with Fujitsu, free, on time.
The condition for the 12-year tier. AirGreen is Elite Plus.
The warranty requires a licensed contractor. RBQ 5645-9605-01.
Fujitsu’s text excludes systems bought from an online retailer.
Fujitsu’s simplicity, AirGreen’s installation.
FUJITSU AIRSTAGE designs a light wall unit that even takes a 115 V outlet. AirGreen checks your circuit, installs it and registers its warranty.
What FUJITSU AIRSTAGE brings
- 115 V or 230 VAt 9,000 and 12,000 BTU/h.
- 7 kgThe 9,000 indoor unit.
- Down to -15 °CBack-up heating for winter.
- Up to 12 yearsParts and compressor, with registration and an Elite contractor.
What AirGreen brings
- Elite Plus dealerThe highest level of the AIRSTAGE Elite program.
- Free home estimateWe measure and check the insulation and the location.
- Warranty registered for youWith Fujitsu, within 60 days.
- RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16.
The result: an Altair 300 on the right circuit, in the right spot, with its longest warranty.
Recent installations, in photos.
Each article on our blog tells a real installation: the place, the constraint and the solution.






Elite Plus: the highest level of the AIRSTAGE Elite program.
Fujitsu’s Japanese engineering, installed by an Elite Plus team across Montreal, Laval, Longueuil, the North Shore, the South Shore and Montérégie.
The highest level of the AIRSTAGE Elite program.
Our technicians take the manufacturer’s training on AIRSTAGE systems.
Vacuum, refrigerant settings, electrical hookup, set up for winter.
Manufacturer parts and Fujitsu technical support, wherever we install.
Free. We measure and check the insulation and the location.
The model, the size and the indicative LogisVert amount, in writing.
Vacuum, refrigerant, electrical, winter settings.
We register the unit with Fujitsu and help you with LogisVert.
What people ask us about the Altair 300.
No question matches. Call us at 514 316-2973.
Yes, the 9,000 and 12,000 come in 115 V. Fujitsu specifies a 20 A breaker for these models.
Same size and same nominal capacity. The 230 V has a slightly higher SEER2 (18 vs 17) and a little more maximum heat at -15 °C; the 115 V cools up to 52 °C outdoors.
Only the 18,000 (230 V), the series’ only ENERGY STAR model: $1,488. The other sizes are not ENERGY STAR certified, so $0.
Down to -15 °C outdoors, with no automatic cut-out in cold weather, according to Fujitsu.
From 10 °C outdoors, according to Fujitsu. Its cooling range does not go lower.
No. It is added with Fujitsu’s UTY-TFSXH4 USB adapter and the AIRSTAGE Mobile app.
On its quiet speed, the indoor unit goes down to 20 dB(A) in the 9,000 and 12,000, according to Fujitsu. That is a lab measurement.
From 7.0 kg for the 9,000 to 12.5 kg for the 24,000.
Up to 20 m of line set for the 9,000 and 12,000, and 25 m for the 18,000 and 24,000.
On the 115 V models, yes: Fujitsu makes it available through the app only, with the Wi-Fi adapter.
Fujitsu does not list one for this series.
Fujitsu specifies 15 A for the 9,000, 12,000 and 18,000, and 20 A for the 24,000.
Related collections.
ENERGY STAR certified at every size, with filters and six fan speeds.
View the collectionR-32Altair 700Compact and Cold Climate certified, with built-in Wi-Fi.
View the collectionWall unitsWall heat pumpsAll five wall series side by side.
View the collectionR-410ARL2 115 VThe 115 V R-410A generation.
View the collectionYour Altair 300, installed by an Elite Plus team.
We come and see the room and the electrical panel, choose the model with you and give you a clear quote.
Hydro-Québec does not solicit anyone by phone or door to door for LogisVert. A call “from Hydro-Québec” selling a heat pump: hang up.
Sources checked on October 8, 2026
30 sources · show
- Fujitsu AIRSTAGE, airstagehvac.com/r32/knas1
- Fujitsu AIRSTAGE, airstagehvac.com/split/featureicon
- Fujitsu, brochure FG8152C
- Fujitsu, brochure FG8152D
- Fujitsu, submittal sheet 09KNAS1-208V_Rev1
- Fujitsu, submittal sheet 12KNAS1-208V_Rev1
- Fujitsu, submittal sheet 18KNAS1-208V_Rev1
- Fujitsu, submittal sheet 24KNAS1-208V_Rev1
- Fujitsu, submittal sheet 09KNAS1
- Fujitsu, submittal sheet 12KNAS1
- Fujitsu, design manual AS238ES_01
- Fujitsu AIRSTAGE, airstagehvac.com/r32/kpas1
- Fujitsu, brochure FG8151C
- Fujitsu, brochure FG8151D
- Fujitsu, submittal sheet 09KPAS1
- Fujitsu, submittal sheet 12KPAS1
- Fujitsu, submittal sheet 18KPAS1
- Fujitsu, submittal sheet 24KPAS1
- Fujitsu, submittal sheet 30KPAS1
- Fujitsu, submittal sheet 36KPAS1
- Fujitsu, design manual AS237ES_02
- ENERGY STAR, certified air-source heat pump list (dataset w7cv-9xjt)
- NEEP, cold-climate heat pump list
- Hydro-Québec, LogisVert residential participation guide, version 1.10
- Hydro-Québec, LogisVert partner notice (ENERGY STAR required)
- Government of Québec, mesure du bruit
- International Astronomical Union, star and constellation names
- NASA, summer triangle corner altair
- airgreen.ca product sheets, read October 8, 2026
- AirGreen, “Nos réalisations” projects blog
Amounts shown are estimates; only Hydro-Québec confirms the grant. Manufacturer data is quoted “according to Fujitsu”.
The Altair 300 units, right below.
Each product sheet gives the voltage, the heat at -15 °C and, for the 18,000, the AHRI number and the indicative LogisVert amount.
