AirGreenFUJITSUAIRSTAGE
FUJITSU AIRSTAGE · ALTAIR 300 · KNAS1The Altair 300 at AirGreenAuthorized dealer at the highest level of the AIRSTAGE Elite program.
Elite Plus
AirGreen × FUJITSU AIRSTAGEAltair 300 · KNAS1115 V or 230 VThe lightest R-32 wall unitDown to -15 °C$1,488 in LogisVert for the 18,000Elite Plus dealer
01 · What only the Altair 300 does

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.

115 V

It is Fujitsu’s only R-32 wall series offered in 115 V, in 9,000 and 12,000 BTU/h.

7 kg

The 9,000 indoor unit weighs 7 kg, the lightest of Fujitsu’s five R-32 wall series.

$1,488

Only the 18,000 is ENERGY STAR certified, and it carries the Cold Climate mark: $1,488 of LogisVert.

Surprise

The Altair 300 18,000 earns more LogisVert than the Altair 500 18,000, even though the latter heats more at -15 °C.

10 °C → 50 °C

It cools from 10 °C outdoors, up to 50 °C (52 °C in 115 V).

530 g

The 9,000 holds only 530 g of R-32 refrigerant.

02 · Its place in the R-32 range

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.

03 · The sizes

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.

ModelHeats down toMax at -15 °CSEER2HSPF2LogisVertAHRI
Altair 300 9,000 BTU/h 115 V-15 °C6,800 BTU/h179$0215422283
Altair 300 9,000 BTU/h-15 °C7,000 BTU/h189$0217505655
Altair 300 12,000 BTU/h 115 V-15 °C8,200 BTU/h179$0215422284
Altair 300 12,000 BTU/h-15 °C8,800 BTU/h189$0217505656
Altair 300 18,000 BTU/h-15 °C14,500 BTU/h209$1,488217617837
Altair 300 24,000 BTU/h-15 °C16,000 BTU/h209$0217617836

The indoor unit, to scale

1 m9,000 and 12,000 BTU/h770×250×218 mm · 7 kg18,000 BTU/h834×270×239 mm · 10.5 kg24,000 BTU/h980×280×240 mm · 12.5 kg

Front face drawn to scale, with the 1 m ruler. Dimensions: width × height × depth, according to Fujitsu.

04 · The voltage

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 or 230 V
115 V230 V
Breaker9,000: 20 A · 12,000: 20 A9,000: 15 A · 12,000: 15 A
Max heat at -15 °C9,000: 6,800 BTU/h · 12,000: 8,200 BTU/h9,000: 7,000 BTU/h · 12,000: 8,800 BTU/h
SEER29,000: 17 · 12,000: 179,000: 18 · 12,000: 18
Cooling up to52 °C50 °C
Samesize, weight, charge, sound, ENERGY STAR ratingssize, 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.

05 · Featherweight

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.

Altair 300
7 kg
Altair 500
9.5 kg
Altair 700
10 kg
Orion XLTH
12.5 kg
Orion XLTH+
14 kg

Weight of the 9,000 BTU/h indoor units, per Fujitsu’s sheets.

06 · In cold weather

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.

Maximum heat by outdoor temperatureTap a temperature
Size8.3 °C-8.3 °C-15 °C
9,000 · 115 V BTU/h12,400 BTU/h8,550 BTU/h6,800 BTU/h
9,000 BTU/h12,400 BTU/h8,550 BTU/h7,000 BTU/h
12,000 · 115 V BTU/h13,900 BTU/h10,100 BTU/h8,200 BTU/h
12,000 BTU/h13,900 BTU/h10,100 BTU/h8,800 BTU/h
18,000 BTU/h22,500 BTU/h16,500 BTU/h14,500 BTU/h
24,000 BTU/h26,000 BTU/h18,200 BTU/h16,000 BTU/h

Operating ranges

-30 °C-20 °C-10 °C0 °C10 °C20 °C30 °C40 °C50 °C
Altair 300 · 9,000 and 12,000 BTU/hHeating -15 °C to 24 °C · cooling 10 °C to 52 °C
Altair 300 · 9,000, 12,000, 18,000 and 24,000 BTU/hHeating -15 °C to 24 °C · cooling 10 °C to 50 °C
HeatingCooling

Outdoor operating temperatures published by Fujitsu.

07 · Built in

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.

08 · What you hear

From 20 dB(A) at 9,000 and 12,000.

Place each model on the scale of everyday sounds.

Sound level, size by size
ModelIndoor, quiet speedIndoor, high speedOutdoor unit
Altair 300 9,000 BTU/h 115 V20 dB(A)41 dB(A)46 dB(A)
Altair 300 9,000 BTU/h20 dB(A)41 dB(A)46 dB(A)
Altair 300 12,000 BTU/h 115 V20 dB(A)41 dB(A)48 dB(A)
Altair 300 12,000 BTU/h20 dB(A)41 dB(A)48 dB(A)
Altair 300 18,000 BTU/h28 dB(A)48 dB(A)53 dB(A)
Altair 300 24,000 BTU/h31 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.

09 · The duel

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 · 18,000Altair 500 · 18,000
Heats down to-15 °C-15 °C
Max heat at -15 °C14,500 BTU/h18,500 BTU/h
SEER22022
HSPF2910.5
Lowest indoor sound28 dB(A)26 dB(A)
Indoor weight10.5 kg12.5 kg
Max line set25 m30 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 · 24,000Altair 500 · 24,000
Heats down to-15 °C-15 °C
Max heat at -15 °C16,000 BTU/h20,000 BTU/h
SEER22021.5
HSPF2910
Lowest indoor sound31 dB(A)31 dB(A)
Indoor weight12.5 kg12.5 kg
Max line set25 m30 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 · 12,000Altair 500 · 12,000
Heats down to-15 °C-15 °C
Max heat at -15 °C8,800 BTU/h8,500 BTU/h
SEER21824
HSPF2910.5
Lowest indoor sound20 dB(A)19 dB(A)
Indoor weight7.5 kg9.5 kg
Max line set20 m20 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.

10 · Installation

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.

Place the outdoor unitDrag the sliders
ModelMax lengthMax heightPre-chargeMinimum
Altair 300 9,000 BTU/h 115 V20 m15 m15 m3 m
Altair 300 9,000 BTU/h20 m15 m15 m3 m
Altair 300 12,000 BTU/h 115 V20 m15 m15 m3 m
Altair 300 12,000 BTU/h20 m15 m15 m3 m
Altair 300 18,000 BTU/h25 m20 m15 m3 m
Altair 300 24,000 BTU/h25 m20 m15 m3 m
11 · Hydro-Québec LogisVert

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.

ModelIndicative amountCalculation
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$1,48812,400 BTU/h ÷ 1,000 × $120 = $1,488
Altair 300 24,000 BTU/h$0–
ENERGY STAR required

Since November 26, 2025, only ENERGY STAR certified heat pumps qualify.

12,000 BTU/h minimum

The outdoor unit must be at least 12,000 BTU/h nominal in cooling.

Cap: 100% of the cost

The grant never exceeds the purchase and installation cost, before taxes.

9 months to apply

You apply no later than nine months after installation.

Apply for LogisVert no later than
July 8, 2027
All about LogisVert

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.

12 · The spec sheet

The six models, line by line.

Altair 300 9,000 BTU/h 115 VAltair 300 9,000 BTU/hAltair 300 12,000 BTU/h 115 VAltair 300 12,000 BTU/hAltair 300 18,000 BTU/hAltair 300 24,000 BTU/h
Indoor unitASLH09KNASASUH09KNASASLH12KNASASUH12KNASASUH18KNASASUH24KNAS
Outdoor unitAOLH09KNAS1AOUH09KNAS1AOLH12KNAS1AOUH12KNAS1AOUH18KNAS1AOUH24KNAS1
AHRI number215422283217505655215422284217505656217617837217617836
Heats down to-15 °C-15 °C-15 °C-15 °C-15 °C-15 °C
Rated heating9,000 BTU/h9,000 BTU/h12,000 BTU/h12,000 BTU/h18,000 BTU/h24,000 BTU/h
Rated cooling9,000 BTU/h9,000 BTU/h12,000 BTU/h12,000 BTU/h18,000 BTU/h22,000 BTU/h
SEER2171817182020
EER210.610.610.210.31110.5
HSPF2999999
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 sound46 dB(A)46 dB(A)48 dB(A)48 dB(A)53 dB(A)55 dB(A)
Indoor, w×h×d770×250×218 mm770×250×218 mm770×250×218 mm770×250×218 mm834×270×239 mm980×280×240 mm
Outdoor, w×h×d663×541×290 mm663×541×290 mm663×541×290 mm663×541×290 mm799×542×290 mm799×632×290 mm
Weight in / out7 / 23 kg7 / 23 kg7.5 / 25 kg7.5 / 25 kg10.5 / 33 kg12.5 / 36 kg
Max line set / height20 / 15 m20 / 15 m20 / 15 m20 / 15 m25 / 20 m25 / 20 m
Breaker20 A15 A20 A15 A15 A20 A
Refrigerant charge0.5 kg0.5 kg0.7 kg0.7 kg0.9 kg1.2 kg
ENERGY STARNot ENERGY STAR listedNot ENERGY STAR listedNot ENERGY STAR listedNot ENERGY STAR listedENERGY STAR cold climateNot 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.

13 · Did you know

Small wall unit, big surprises.

The Altair 300 is Fujitsu’s only R-32 wall series offered in 115 V.

Source: Fujitsu

The 9,000 indoor unit weighs 7 kg, the lightest of Fujitsu’s five R-32 wall series.

Source: Fujitsu

In this series, only the 18,000 is ENERGY STAR certified, and it also carries the Cold Climate mark.

Source: ENERGY STAR

The 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-Québec

The 9,000 holds only 530 g of R-32 refrigerant.

Source: Fujitsu

The Altair 8800, one of the first home computers, was named after the star Altair, NASA notes.

Source: NASA, IAU
14 · The Fujitsu warranty

Up 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.

12 yearsparts and compressor, on eligible models
Basic warranty5 years parts, 7 years compressor
7 yrs
Registered onlineWithin 60 days
10 yrs
Elite contractor + registeredThe AirGreen tier
12 yrs

In Québec, the basic warranty needs no registration; the 10- and 12-year tiers do. Source: Fujitsu limited warranty statement (R-32).

Online registration, 60 days

We register your unit with Fujitsu, free, on time.

Fujitsu Elite contractor

The condition for the 12-year tier. AirGreen is Elite Plus.

Licensed installer

The warranty requires a licensed contractor. RBQ 5645-9605-01.

Bought online: not covered.

Fujitsu’s text excludes systems bought from an online retailer.

AirGreen × FUJITSU AIRSTAGE

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.

FUJITSUAIRSTAGE

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.
AirGreen

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.

15 · Our Altair 300 installations

Recent installations, in photos.

Each article on our blog tells a real installation: the place, the constraint and the solution.

16 · FUJITSU AIRSTAGE dealer – ELITE PLUS

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.

Elite Plus partnership

The highest level of the AIRSTAGE Elite program.

Advanced Fujitsu training

Our technicians take the manufacturer’s training on AIRSTAGE systems.

Careful commissioning

Vacuum, refrigerant settings, electrical hookup, set up for winter.

Genuine parts and Fujitsu support

Manufacturer parts and Fujitsu technical support, wherever we install.

1Home estimate

Free. We measure and check the insulation and the location.

2Clear quote

The model, the size and the indicative LogisVert amount, in writing.

3Installation and commissioning

Vacuum, refrigerant, electrical, winter settings.

4Warranty registered

We register the unit with Fujitsu and help you with LogisVert.

17 · Frequently asked questions

What people ask us about the Altair 300.

Yes, the 9,000 and 12,000 come in 115 V. Fujitsu specifies a 20 A breaker for these models.

18 · See also

Related collections.

AirGreen × FUJITSU AIRSTAGEFree home estimateWarranty registered for youElite Plus dealerMontreal · Laval · Longueuil · South Shore · North Shore

Sources checked on October 8, 2026

30 sources · show
  1. Fujitsu AIRSTAGE, airstagehvac.com/r32/knas1
  2. Fujitsu AIRSTAGE, airstagehvac.com/split/featureicon
  3. Fujitsu, brochure FG8152C
  4. Fujitsu, brochure FG8152D
  5. Fujitsu, submittal sheet 09KNAS1-208V_Rev1
  6. Fujitsu, submittal sheet 12KNAS1-208V_Rev1
  7. Fujitsu, submittal sheet 18KNAS1-208V_Rev1
  8. Fujitsu, submittal sheet 24KNAS1-208V_Rev1
  9. Fujitsu, submittal sheet 09KNAS1
  10. Fujitsu, submittal sheet 12KNAS1
  11. Fujitsu, design manual AS238ES_01
  12. Fujitsu AIRSTAGE, airstagehvac.com/r32/kpas1
  13. Fujitsu, brochure FG8151C
  14. Fujitsu, brochure FG8151D
  15. Fujitsu, submittal sheet 09KPAS1
  16. Fujitsu, submittal sheet 12KPAS1
  17. Fujitsu, submittal sheet 18KPAS1
  18. Fujitsu, submittal sheet 24KPAS1
  19. Fujitsu, submittal sheet 30KPAS1
  20. Fujitsu, submittal sheet 36KPAS1
  21. Fujitsu, design manual AS237ES_02
  22. ENERGY STAR, certified air-source heat pump list (dataset w7cv-9xjt)
  23. NEEP, cold-climate heat pump list
  24. Hydro-Québec, LogisVert residential participation guide, version 1.10
  25. Hydro-Québec, LogisVert partner notice (ENERGY STAR required)
  26. Government of Québec, mesure du bruit
  27. International Astronomical Union, star and constellation names
  28. NASA, summer triangle corner altair
  29. airgreen.ca product sheets, read October 8, 2026
  30. AirGreen, “Nos réalisations” projects blog

Amounts shown are estimates; only Hydro-Québec confirms the grant. Manufacturer data is quoted “according to Fujitsu”.

Price on quote. Every installation is different: we give you a free, detailed quote before any commitment.
The FUJITSU AIRSTAGE shop · Altair 300

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.

FUJITSUAIRSTAGE