LMAH1: heats down to -26 °C, with modest output in deep cold.
The LMAH1 is the LMAS1 indoor unit on an XLTH outdoor unit: the floor goes from -15 °C to -26 °C. But at -26 °C it gives 5,470 BTU/h at 9,000 and 6,180 BTU/h at 12,000, according to Fujitsu: about half of a same-size LZAH1. Here are its real numbers.
LMAH1 · R-410A
Same indoor unit as the LMAS1 (ASUH…LMAS): only the outdoor unit changes.
Low floor, modest output: five facts.
Facts from Fujitsu sheets, the ENERGY STAR list and the NEEP list. Sources are at the bottom of the page.
Same indoor unit as the LMAS1: the outdoor unit takes the floor from -15 °C to -26 °C.
At -26 °C, Fujitsu gives 5,470 BTU/h for the 9,000 and 6,180 BTU/h for the 12,000.
At -26 °C, the same-size LZAH1 delivers about twice the heat, according to Fujitsu’s tables.
The 12,000 keeps exactly the same rated output between -8 °C and -15 °C: 10,300 BTU/h.
Cold Climate certified at 9,000, not at 12,000, so the 12,000 gets $515 from LogisVert.
Eight R-410A series, from the coldest floor to the mildest.
Before R-32, Fujitsu wall units ran on R-410A. Each card gives the series’ heating floor; the LMAH1 is highlighted.
9,000 or 12,000 BTU/h.
Tap a size: photo, link to the product sheet, heat at -15 °C when Fujitsu publishes it, efficiency and LogisVert amount.
| Model | Heats down to | Max at -15 °C | SEER2 | HSPF2 | LogisVert | AHRI |
|---|---|---|---|---|---|---|
| LMAH1 9,000 BTU/h | -26 °C | 9,480 BTU/h | 26.5 | 12.3 | $0 | 206263449 |
| LMAH1 12,000 BTU/h | -26 °C | 10,700 BTU/h | 23 | 11.2 | $515 | 206263450 |
The indoor unit, to scale
Front face drawn to scale, with the 1 m ruler. Dimensions: width × height × depth, according to Fujitsu.
Down to -26 °C, but with how much heat?
The bars show the maximum published heat; the red tick, the ENERGY STAR value LogisVert uses; the dotted line, the nominal size. Fujitsu publishes fewer points for its older series: a dash means “not published”.
| Size | 8.3 °C | -8.3 °C | -15 °C | -26.1 °C |
|---|---|---|---|---|
| 9,000 BTU/h | 16,000 BTU/h | 10,550 BTU/h | 9,480 BTU/h | 5,470 BTU/h |
| 12,000 BTU/h | 19,100 BTU/h | 12,700 BTU/h | 10,700 BTU/h | 6,180 BTU/h |
Operating ranges
Outdoor operating temperatures published by Fujitsu.
At -26 °C, the LZAH1 gives about twice as much.
Maximum heat at -26 °C from Fujitsu’s tables, LMAH1 (red) and LZAH1 (teal), size for size.
LMAH1 or LMAS1: two floors.
The ASUH…LMAS indoor unit is the same. Compare the LMAH1 and the generation-H LMAS1, size for size.
LMAH1 · 9,000 vs LMAS1 · 9,000 · H
| LMAH1 · 9,000 | LMAS1 · 9,000 · H | |
|---|---|---|
| Heats down to | -26 °C | -15 °C |
| Max heat at -15 °C | 9,480 BTU/h | 10,200 BTU/h |
| Max heat at -26.1 °C | 5,470 BTU/h | – |
| SEER2 | 26.5 | 26.5 |
| HSPF2 | 12.3 | 12.6 |
| Lowest indoor sound | 19 dB(A) | 19 dB(A) |
| Indoor weight | 10 kg | 10 kg |
| Max line set | 20 m | 20 m |
| Indicative LogisVert | $0 | $0 |
Same indoor unit: the LMAS1 stops at -15 °C, the LMAH1 carries on to -26 °C thanks to its outdoor unit.
LMAH1 · 12,000 vs LMAS1 · 12,000 · H
| LMAH1 · 12,000 | LMAS1 · 12,000 · H | |
|---|---|---|
| Heats down to | -26 °C | -15 °C |
| Max heat at -15 °C | 10,700 BTU/h | 10,700 BTU/h |
| Max heat at -26.1 °C | 6,180 BTU/h | – |
| SEER2 | 23 | 23 |
| HSPF2 | 11.2 | 11.1 |
| Lowest indoor sound | 19 dB(A) | 19 dB(A) |
| Indoor weight | 10 kg | 10 kg |
| Max line set | 20 m | 20 m |
| Indicative LogisVert | $515 | $440 |
Same indoor unit: the LMAS1 stops at -15 °C, the LMAH1 carries on to -26 °C thanks to its outdoor unit.
What Fujitsu put in it.
Fujitsu lists this series among its retired models. It stays in AirGreen’s catalogue: we confirm availability at quote time, and show you its R-32 successor alongside.
Optional Wi-Fi: a wireless adapter, sold separately, adds app control.
Minimum heat mode: the room stays at 10 °C while you’re away.
Powerful mode: 20 minutes at maximum airflow and compressor speed.
Economy mode: the set point adjusts to avoid over-heating or over-cooling.
19 dB(A) on quiet speed.
Place each size on the scale of everyday sounds.
| Model | Indoor, quiet speed | Indoor, high speed | Outdoor unit |
|---|---|---|---|
| LMAH1 9,000 BTU/h | 19 dB(A) | 43 dB(A) | 48 dB(A) |
| LMAH1 12,000 BTU/h | 19 dB(A) | 43 dB(A) | 51 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.
Up to 20 m of line set and 15 m of height difference.
Drag the sliders to place the outdoor unit: the tool applies Fujitsu’s limits and the refrigerant to add beyond the pre-charge.
| Model | Max length | Max height | Pre-charge | Minimum |
|---|---|---|---|---|
| LMAH1 9,000 BTU/h | 20 m | 15 m | 15 m | 3 m |
| LMAH1 12,000 BTU/h | 20 m | 15 m | 15 m | 5 m |
$515 for the 12,000: why not more.
The 9,000 is cold-climate certified but stays below the 12,000 BTU/h minimum. The 12,000 is standard ENERGY STAR: $50 × 10,300 BTU/h ÷ 1,000 = $515.
| Model | Indicative amount | Calculation |
|---|---|---|
| LMAH1 9,000 BTU/h | $0 | – |
| LMAH1 12,000 BTU/h | $515 | 10,300 BTU/h ÷ 1,000 × $50 = $515 |
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.
What replaces the LMAH1 today.
Pick a size: the LMAH1 on the left, the R-32 model that replaces it on the right, with the figures from Fujitsu, ENERGY STAR and LogisVert. The better value on each row is in green.
LMAH1 · 9,000 vs Orion XLTH · 9,000
| LMAH1 · 9,000 | Orion XLTH · 9,000 | |
|---|---|---|
| Heats down to | -26 °C | -26 °C |
| Max heat at -15 °C | 9,480 BTU/h | 15,400 BTU/h |
| Max heat at -26.1 °C | 5,470 BTU/h | 11,400 BTU/h |
| SEER2 | 26.5 | 33.1 |
| HSPF2 | 12.3 | 13.3 |
| Lowest indoor sound | 19 dB(A) | 23 dB(A) |
| Indoor weight | 10 kg | 12.5 kg |
| Max line set | 20 m | 25 m |
| Indicative LogisVert | $0 | $0 |
Same size and the same -26 °C floor; Cold Climate certified in both sizes.
LMAH1 · 12,000 vs Orion XLTH · 12,000
| LMAH1 · 12,000 | Orion XLTH · 12,000 | |
|---|---|---|
| Heats down to | -26 °C | -26 °C |
| Max heat at -15 °C | 10,700 BTU/h | 16,600 BTU/h |
| Max heat at -26.1 °C | 6,180 BTU/h | 12,200 BTU/h |
| SEER2 | 23 | 30.5 |
| HSPF2 | 11.2 | 12.7 |
| Lowest indoor sound | 19 dB(A) | 23 dB(A) |
| Indoor weight | 10 kg | 12.5 kg |
| Max line set | 20 m | 25 m |
| Indicative LogisVert | $515 | $1,200 |
Same size and the same -26 °C floor; Cold Climate certified in both sizes.
R-410A: what the rules really say.
In Canada, what is capped is the total amount of HFCs, not the servicing of your heat pump. US dates are shown for comparison, in grey.
Canada ratifies the Kigali Amendment, which targets an 85% cut in HFCs by 2036.
Canada’s HFC phase-down starts: the cap is 90% of the baseline.
Québec: GWP limits for some refrigeration equipment. Heat pumps are not covered.
Canada’s cap drops to 60% of the baseline, a 40% cut.
A GWP limit of 750 for chillers, in Canada and in Québec. Still nothing for residential heat pumps.
United States only: import deadline for residential R-410A products (EPA rule, per Fujitsu).
LogisVert requires ENERGY STAR certification, whatever the refrigerant.
United States only: installation deadline for new residential R-410A systems (per Fujitsu).
Canada’s cap drops to 30% of the baseline.
Canada’s cap drops to 20% of the baseline.
Canada’s cap reaches 15% of the baseline, the targeted 85% cut.
Key point: In Canada, what is capped is the total amount of HFCs, not the installation or servicing of an R-410A heat pump. The US dates are shown for comparison only.
Servicing an R-410A heat pump in Québec
In Québec, you can have your R-410A heat pump serviced and repaired for its whole useful life.
Québec’s halocarbon regulation limits the GWP of refrigeration equipment and chillers, not that of residential heat pumps.
Only a person holding the attestation required by the regulation may install, service, repair, charge or drain the unit.
Refrigerant must never be released into the air. It is recovered before any repair or removal.
A leaking unit isn’t simply topped up. A leak test comes before any refill.
The regulation’s annual leak test targets air-conditioning equipment of 20 kW and more, a size no wall heat pump in these families reaches.
R-32 can’t go into an R-410A system. Fujitsu says it is not a drop-in replacement.
Indoor and outdoor units pair within the same generation. Plan a full-system replacement when the time comes.
Canada doesn’t ban R-410A. It caps the amount of HFCs: 60% of the baseline until 2028, then 30% from 2029.
Fujitsu warranty: 5 years parts and 7 years compressor, up to 12 years with online registration within 60 days and a Fujitsu Elite contractor. Labour isn’t covered by Fujitsu.
Register the unit online within 60 days of installation. That’s the condition for the extended warranty.
Every size, line by line.
| LMAH1 9,000 BTU/h | LMAH1 12,000 BTU/h | |
|---|---|---|
| Indoor unit | ASUH09LMAS | ASUH12LMAS |
| Outdoor unit | AOUH09LMAH1 | AOUH12LMAH1 |
| AHRI number | 206263449 | 206263450 |
| Heats down to | -26 °C | -26 °C |
| Rated heating | 12,000 BTU/h | 16,000 BTU/h |
| Rated cooling | 9,000 BTU/h | 12,000 BTU/h |
| SEER2 | 26.5 | 23 |
| EER2 | 15.4 | 12.5 |
| HSPF2 | 12.3 | 11.2 |
| Indoor sound (min / max) | 19 / 43 dB(A) | 19 / 43 dB(A) |
| Outdoor sound | 48 dB(A) | 51 dB(A) |
| Indoor, w×h×d | 834×270×222 mm | 834×270×222 mm |
| Outdoor, w×h×d | 799×542×290 mm | 799×542×290 mm |
| Weight in / out | 10 / 33 kg | 10 / 33 kg |
| Max line set / height | 20 / 15 m | 20 / 15 m |
| Breaker | 15 A | – |
| Refrigerant charge | 1 kg | 1 kg |
| ENERGY STAR | ENERGY STAR cold climate | ENERGY STAR |
| Indicative LogisVert | $0 | $515 |
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.
What the LMAH1 sheets tell.
The LMAH1 and LMAS1 share the same indoor unit. Only the outdoor unit changes the heating floor.
Source: ENERGY STARBetween -8 °C and -15 °C, the 12,000 keeps exactly the same rated output: 10,300 BTU/h.
Source: ENERGY STAR19 dB(A) at quiet speed, below a whisper heard a metre away (20 dBA).
Source: Fujitsu, Government of QuébecFujitsu advertised it as heating down to -15 °F, which is -26 °C.
Source: FujitsuCold Climate certified at 9,000, not at 12,000.
Source: ENERGY STARAt -15 °C, the 9,000 still delivers 9,400 BTU/h, more than its nominal size, according to ENERGY STAR.
Source: ENERGY STARUp 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.
Fujitsu limited warranty statement for R-410A (version 10/2024): labour is not covered by Fujitsu, and the 10-year tier covers systems bought after January 1, 2022.
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 numbers, AirGreen’s advice.
An LMAH1 heats down to -26 °C, but not with the strength of an LZAH1. AirGreen shows you the gap before you choose.
What FUJITSU AIRSTAGE brings
- Down to -26 °CFloor published by Fujitsu.
- 19 dB(A)On quiet speed, according to Fujitsu.
- Cold climate at 9,000Standard ENERGY STAR at 12,000.
- Up to 12 yearsParts and compressor, on Fujitsu’s conditions.
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: a decision made with the real deep-cold capacities in front of you.
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 LMAH1.
No question matches. Call us at 514 316-2973.
Yes, Fujitsu rates it from -26 to 24 °C. At -26 °C its maximum output is 5,470 BTU/h for the 9,000 and 6,180 BTU/h for the 12,000.
Same indoor unit. The LMAH1’s outdoor unit goes down to -26 °C instead of -15 °C.
Both are rated to -26 °C, but the LZAH1 delivers roughly twice the heat at that temperature, according to Fujitsu’s tables.
$0 for the 9,000, under the 12,000 BTU/h minimum, and $515 for the 12,000, which is ENERGY STAR certified but not Cold Climate.
The 9,000 is; the 12,000 is not.
No. It needs the optional wireless adapter.
19 dB(A) in cooling at quiet speed, a lab value.
No, it’s one of the retired models.
The R-32 Orion XLTH: the same sizes, the same -26 °C floor, and Cold Climate certified in both sizes.
Up to 20 m of line set and 15 m of height difference.
Related collections.
A LMAH1, or its successor, installed by an Elite Plus team.
We come and see the room, show you the LMAH1 and its R-32 successor side by side, with their LogisVert amounts, 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
52 sources · show
- Fujitsu AIRSTAGE, airstagehvac.com/v1/products?productIds=<model>
- Fujitsu, product or archive page IDX
- Fujitsu AIRSTAGE, airstagehvac.com/split/wall
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- Fujitsu AIRSTAGE, airstagehvac.com/halcyon/warranty
- Fujitsu AIRSTAGE, document pdf-fcus-h-series-warranty-r32-202606
- Fujitsu AIRSTAGE, airstagehvac.com/benefits/next-gen-r32
- Fujitsu AIRSTAGE, document pdf-fcus-media-library-pr-lz-lm-nr-01
- Fujitsu, technical document 09LMAH1_Submittal_09LMAH1
- Fujitsu, technical document 12LMAH1_Submittal_12LMAH1
- Fujitsu, design manual AS131EF_04
- Fujitsu, product or archive page PAGE-LMAH-12
- Fujitsu, product or archive page SER-RLS3H
- Fujitsu, submittal sheet 2021.01.21
- Fujitsu, technical document 09LMAS1_Submittal_09LMAS1
- Fujitsu, technical document 12LMAS1_Submittal_12LMAS1
- Fujitsu, technical document 18LMAS1_Submittal_18LMAS1
- Fujitsu, technical document 24LMAS1_Submittal_24LMAS1
- Fujitsu, design manual AS143EF_03
- Fujitsu, product or archive page SER-RLFW1
- Fujitsu, technical document 09LZBH1_Submittal_09LZBH1
- Fujitsu, technical document 12LZBH1_Submittal_12LZBH1
- Fujitsu, technical document 15LZBH1_Submittal_15LZBH1
- Fujitsu, technical document 12LZAH1_Submittal_12LZAH1
- Fujitsu, design manual AS142EF_02
- Fujitsu AIRSTAGE, airstagehvac.com/r32/kzah1
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- Fujitsu, brochure FG8153D
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- Fujitsu, submittal sheet 12KZAH1
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- Fujitsu, submittal sheet 18KZAH1
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- 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
- Government of Québec, Q 2,%20r.%2029
- Government of Québec, faq en
- Government of Canada, closed canada greener homes grant quebec
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- International Astronomical Union, star and constellation names
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- NASA, messier 42
- 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 LMAH1 units, right below.
For R-32, see the Orion XLTH, which heats down to -26 °C with far more output.
