Installation of a FUJITSU ORION XLTH KZAH R-32 12,000 BTU wall-mounted heat pump in Southwest Montreal
HVAC installation of a FUJITSU ORION XLTH 12,000 BTU wall-mounted heat pump in Southwest Montreal. A quiet, high-performance solution eligible for the LogisVert subsidy, optimized for Quebec's climate.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
A discreet and perfectly integrated HVAC system in a bright living space
In Southwest Montreal, we recently completed a complete HVAC installation of a FUJITSU ORION XLTH 12,000 BTU wall-mounted heat pump in a modern open-concept condo. This type of environment, with its relatively high ceilings and large windows, requires a solution that is both powerful, quiet, and aesthetically discreet.
Upon our arrival on site, we observed a common challenge in this type of property: maintaining a stable temperature in a room exposed to natural light, while avoiding thermal fluctuations caused by external variations.
The image above perfectly illustrates the final result: a wall-mounted unit elegantly positioned high above the windows, allowing for optimal air diffusion without compromising the interior layout.
Why the FUJITSU ORION XLTH 12,000 BTU was the ideal choice
Performance adapted to Greater Montreal's winters
In an area like Southwest Montreal, where winter temperatures can drop rapidly, it was imperative to choose a heat pump capable of efficiently heating down to -26°C.
The FUJITSU ORION XLTH KZAH is distinguished by:
- Stable heating capacity even in extreme conditions
- Advanced Inverter technology allowing precise modulation
- Real power suitable for typical residential spaces (condos, apartments, duplexes)
In this specific project, the area to be covered and the open configuration made the 12,000 BTU perfectly sized.
Remarkable energy performance
This installation allows the client to benefit from a highly efficient system:
- SEER2: 30.5 (excellent cooling efficiency)
- HSPF2: 12.7 (superior heating performance)
- ENERGY STAR® Cold Climate certification
- R-32 refrigerant, more environmentally friendly and efficient
These characteristics translate concretely into:
- A significant reduction in energy bills
- Consistent comfort, summer and winter
- A sustainable solution aligned with current environmental standards
LogisVert subsidy: a significant financial advantage
As part of this project, the heat pump is eligible for the LogisVert subsidy of $1,200, which represents a significant leverage for the client.
At AirGreen, we always support our clients in:
- Eligibility validation
- Document preparation
- File submission
This support significantly simplifies the process and maximizes savings.
Technical challenges encountered during installation
Strategic positioning of the indoor unit
One of the key elements of this installation was the precise positioning of the wall-mounted unit.
In this room, two windows occupied a large part of the wall. We therefore chose:
- An installation centered above the openings
- Optimal height for uniform air diffusion
- An angle allowing coverage of the entire living area
This technical choice guarantees:
- Better air circulation
- Elimination of cold or hot spots
- Uniform comfort throughout the room
Aesthetic management of ducts and piping
Another important challenge concerned visual integration. In a modern condo, aesthetics are as important as performance.
We therefore:
- Used discreet pipe covers matching the wall
- Minimized the visual impact of connections
- Optimized the route of refrigerant lines
Result: a clean, professional, and practically invisible installation.
Outdoor unit installation
As always in Greater Montreal, the outdoor unit installation was designed to withstand climatic conditions:
- Elevated position to prevent snow accumulation
- Orientation adapted to prevailing winds
- Easy access for future maintenance
The ORION XLTH series, equipped with a heated base, is particularly reliable in winter.
A smooth and transparent customer experience
At AirGreen, every project is structured to offer a simple and reassuring experience:
Before installation
- Complete thermal evaluation
- Capacity choice validation
- Clear presentation of price and options
During installation
- Clean and fast work
- Respect for the premises
- Constant communication with the client
After installation
- Complete commissioning
- Detailed explanation of operation
- Support for Wi-Fi and programming
In this specific case, the client particularly appreciated:
- The extremely low noise level of the unit
- The speed of cooling
- Temperature stability
Practical advice for this type of installation
What we recommend
To maximize the performance of a wall-mounted heat pump in Montreal or on the South Shore / North Shore:
- Clean filters regularly
- Maintain clearance around the unit
- Avoid constantly changing the temperature
- Schedule timings via Wi-Fi
Common mistakes to avoid
We often observe:
- Incorrect positioning of the indoor unit
- Incorrect sizing (too small or too powerful)
- Poorly protected outdoor installation
These errors can significantly reduce the performance and lifespan of the system.
Why choose AirGreen for your HVAC installation
Our approach is distinguished by:
- Real field expertise in Montreal, Laval, Longueuil, North Shore, and South Shore
- Total price transparency
- Installation carried out by experienced refrigeration technicians
- Comprehensive support (subsidies, advice, maintenance)
We don't just install a machine — we optimize each project to guarantee performance, durability, and maximum comfort.
Final result: comfort, quietness, and efficiency
This installation in Southwest Montreal is a concrete example of what a FUJITSU ORION XLTH wall-mounted heat pump can offer when correctly installed:
- Stable temperature in all seasons
- Quiet operation
- Reduced energy consumption
- Perfect aesthetic integration
A system that perfectly meets modern expectations for residential HVAC.
Conclusion: a smart investment for Quebec's climate
For a condo or house in Greater Montreal, choosing a FUJITSU ORION XLTH 12,000 BTU heat pump represents an ideal balance between performance, economy, and reliability.
With a professional installation by AirGreen, the client benefits from:
- Four-season comfort
- A quick return on investment
- Long-term peace of mind
How it goes, from the first call to the end
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
What the unit delivers when it is cold
The range as published on airgreen.ca: pick a size to see its capacity in deep cold.
| Size | Heating at −8 °C | Heating at −15 °C | Coldest certified point | COP at −15 °C | SEER | HSPF | Indicative LogisVert aid |
|---|---|---|---|---|---|---|---|
| Fujitsu Orion XLTH 9 000 | 7,500 | 15,400 | −26 °C: 11,400 | 2.26 | 33.1 | 13.3 | – |
| Fujitsu Orion XLTH 12 000 | 10,000 | 16,600 | −26 °C: 12,200 | 2.16 | 30.5 | 12.7 | $1,200 |
| Fujitsu Orion XLTH 15 000 | 11,400 | 21,000 | −26 °C: 16,400 | 2.1 | 27.5 | 12.7 | $1,368 |
| Fujitsu Orion XLTH 18 000 | 13,600 | 24,800 | −26 °C: 19,110 | 2.08 | 25.5 | 12.5 | $1,632 |
| Fujitsu Orion XLTH 24 000 | 15,900 | 25,200 | −26 °C: 19,110 | 2.14 | 24.0 | 11.9 | $1,908 |
According to NEEP, it delivers up to 11,400 BTU/h at −26 °C (−15 °F), more than its 9,000 BTU cooling rating. Its efficiency there is still 1.70.
According to NEEP, its COP at −15 °C is 2.26: the highest of the Orion XLTH line, which ranges from 2.08 to 2.16 at that temperature.
At 8 °C, its certified maximum capacity reaches 23,000 BTU/h, more than double its nominal size.
According to NEEP, it delivers up to 12,200 BTU/h at −26 °C (−15 °F), more than its 12,000 BTU cooling rating. Its efficiency there is still 1.81.
At 8 °C, its certified maximum capacity reaches 23,600 BTU/h, 97% more than its nominal 12,000 BTU size.
At −26 °C, its certified minimum capacity is 1,400 BTU/h (3,500 at 8 °C). It slows down instead of cycling on and off.
According to NEEP, it delivers up to 16,400 BTU/h at −26 °C (−15 °F), more than its 15,000 BTU cooling rating. Its efficiency there is still 1.92.
According to NEEP, its COP at −26 °C is 1.92: the highest of the Orion XLTH line, which ranges from 1.65 to 1.81 at that temperature.
At 8 °C, its certified maximum capacity reaches 25,000 BTU/h, 67% more than its nominal 15,000 BTU size.
According to NEEP, it delivers up to 19,110 BTU/h at −26 °C (−15 °F), more than its 18,000 BTU cooling rating. Its efficiency there is still 1.65.
At 8 °C, its certified maximum capacity reaches 31,800 BTU/h, 77% more than its nominal 18,000 BTU size.
According to NEEP, its certified heating capacity at −15 °C (5 °F) is 24,800 BTU/h, 138% of its nominal 18,000 BTU size. Its COP there is 2.08.
According to NEEP, its certified maximum capacity at −26 °C (−15 °F) is 19,110 BTU/h, 80% of its nominal 24,000 BTU size.
At 8 °C, its certified maximum capacity reaches 36,800 BTU/h, 53% more than its nominal 24,000 BTU size.
At −26 °C, its certified minimum capacity is 3,540 BTU/h (8,200 at 8 °C). It slows down instead of cycling on and off.
Data read live from the airgreen.ca page of each size (NEEP / AHRI certified performance). When the title names the installed size, it is highlighted; otherwise the whole range is shown. The aid shown is today’s, using Hydro-Québec’s rule ($120 per 1,000 BTU/h at −8 °C); amounts quoted in the article date from its publication. Only Hydro-Québec confirms the assistance granted.A dash in the aid column: amount to be confirmed for this model.
And at your place?
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Baseboards and electric furnaces turn 1 kWh of electricity into 1 kWh of heat. A heat pump delivers more: that is its COP. At Hydro-Québec’s rate D (11.142¢/kWh above 40 kWh a day, since 1 April 2026):
Hydro-Québec: a heat pump can be up to three times more efficient than baseboards for heating in the colder months.
Estimate per kWh of heat, at the chosen temperature, using the certified COP from the product page. Taxes, access charge and backup heat not included.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
Which type of equipment for your project?
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What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).