Installation of a Fujitsu ORION XLTH+ 15,000 BTU wall-mounted heat pump in Rivière-des-Prairies–Pointe-aux-Trembles, Montreal
AirGreen installs a Fujitsu ORION XLTH+ 15,000 BTU wall-mounted heat pump in Rivière-des-Prairies–Pointe-aux-Trembles: heating -30 °C, R-32, Wi-Fi included, and LogisVert subsidy.
Take a tour of the installation
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
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 compact, clean, and perfectly suited wall-mounted installation for a Montreal residential space
In this project carried out in Rivière-des-Prairies–Pointe-aux-Trembles, our AirGreen team installed a Fujitsu ORION XLTH+ 15,000 BTU wall-mounted heat pump, a high-efficiency model designed to provide reliable comfort for both heating and cooling. The installation visible in the photo shows an indoor unit mounted high, near the ceiling, in a space where every inch counted. This type of configuration is common in apartments, condos, duplexes, and houses in East Montreal, where a high-performance HVAC solution without major renovations is sought.
The client wanted to improve the comfort of their main living space with a quiet, efficient appliance capable of heating during Quebec's true cold weather. The choice naturally fell on the Fujitsu ORION XLTH+, particularly for its heating capacity down to -30 °C, its R-32 refrigerant, its high energy efficiency, and its eligibility for the LogisVert subsidy.
Why the Fujitsu ORION XLTH+ 15,000 BTU was the right choice for this project
In Rivière-des-Prairies–Pointe-aux-Trembles, homes can present very different realities: bungalows, semi-detached houses, condos, apartment buildings, partial renovations, extensions, open-plan rooms, or areas that are more difficult to heat. In this specific case, the goal was clear: to install a wall-mounted heat pump powerful enough to stabilize the temperature, without compromising the interior aesthetic.
The Fujitsu ORION XLTH+ 15,000 BTU offers a very attractive combination:
- Cooling Capacity: 15,000 BTU
- Heating Capacity down to -30 °C
- SEER2: 28.7
- HSPF2: 13.0
- Refrigerant: R-32
- Wi-Fi included
- Indoor Sound Level: 26 to 46 dB(A)
- Outdoor Sound Level: 51 dB(A)
- Piping: 1/4 – 3/8 in
- Indoor Model: ASUH15KTAS
- Outdoor Model: AOUH15KTAP1
- AHRI: 216018257
- ENERGY STAR®: Yes
- ENERGY STAR® Cold Climate: Yes
- LogisVert Provincial Subsidy: $1,296 for eligible projects
For a homeowner looking for an HVAC installation in Montreal capable of providing four-season comfort, this model represents a serious, durable solution well-suited to the local climate.
High-Mounted Installation Requires Precision and Planning
In the photo, it's notable that the indoor unit is installed very close to the ceiling, in an area adjacent to an interior opening. This positioning is not arbitrary. When a wall-mounted heat pump is placed in a confined space, several technical elements must be respected:
- sufficient clearance for air return;
- airflow orientation to avoid direct discomfort;
- future access for maintenance;
- clean routing of refrigerant lines;
- adequate slope for the condensate drain;
- aesthetic finish around the unit.
A common mistake is to install a unit simply "where there is space". At AirGreen, we analyze the natural air circulation, available height, proximity to walls, openings to other rooms, and constraints for drilling to the outside. In this project, the chosen location allowed for good air distribution while maintaining a discreet integration into the room.
A Wall-Mounted Heat Pump Designed for Montreal Winters
The Rivière-des-Prairies–Pointe-aux-Trembles sector experiences harsh winters, with periods of intense cold and rapid temperature changes. A standard wall-mounted unit can sometimes lose a lot of efficiency when the temperature drops below -15 °C. The Fujitsu ORION XLTH+ stands out precisely for its ability to maintain solid performance down to -30 °C.
This performance is important for clients who wish to reduce their reliance on electric baseboard heaters. In a well-configured house or condo, the heat pump can become the primary source of comfort in the served area, with baseboard heaters acting as supplementary heat only during extreme conditions or in distant rooms.
R-32, Energy Efficiency and Daily Comfort
The R-32 refrigerant is a notable advantage of this installation. It provides excellent thermal performance while meeting new environmental expectations. For the customer, this means a more efficient appliance, better suited to current standards, and designed to last.
The efficiency of the Fujitsu ORION XLTH+ is also evident in its daily operation. Thanks to Inverter technology, the unit modulates its power instead of operating in abrupt cycles. The result: the temperature remains more stable, noise is reduced, and consumption is better controlled.
In a residential space, this stability is greatly appreciated. Heating becomes gentler, air conditioning less aggressive, and air circulates more consistently.
Technical challenges encountered during installation
Each wall-mounted air conditioner or mini-split installation presents its own constraints. Here, the interior space required a particularly neat finish. The unit had to be installed straight, well-aligned, with sufficient clearance despite the proximity of the ceiling. Our technicians also paid particular attention to the route of the conduits to limit visual impact.
Key steps included:
- validation of the indoor location;
- controlled drilling to the outside;
- installation of the wall plate with precise leveling;
- routing of 1/4 – 3/8 inch refrigerant lines;
- installation of the condensate drain with adequate slope;
- compliant electrical connection;
- vacuum pulling;
- leak testing;
- startup and verification of heating, cooling, and ventilation modes;
- explanation of operation to the client, including Wi-Fi and maintenance instructions.
This method reduces the risks of future problems: water leakage, vibration, loss of performance, abnormal noise, or lack of heating in winter.
A Quiet Solution for a Living Space
The indoor sound level of 26 dB(A) in low mode is a significant asset. In a living room, bedroom, office, or open area, noise quickly becomes a criterion for satisfaction. The client wanted a discreet appliance capable of operating for long periods without becoming bothersome.
The Fujitsu ORION XLTH+ meets this need well. Even when heating demand increases, the unit remains comfortable to use. This is particularly relevant for homeowners working remotely or families who use the main living space all day.
The Importance of Proper Sizing
A 15,000 BTU unit is not automatically the right choice for every home. Too small, it will run constantly without reaching the desired temperature. Too large, it risks creating less comfortable cycles, especially for air conditioning.
In this project in Rivière-des-Prairies–Pointe-aux-Trembles, the 15,000 BTU capacity was relevant for the area to be treated. We considered the surface area, ceiling height, insulation, openings between rooms, sun exposure, and the client's habits.
This is the step that distinguishes a true professional HVAC installation from a simple wall mounting.
LogisVert Subsidy: A Concrete Financial Advantage
The Fujitsu ORION XLTH+ 15,000 BTU is eligible for the LogisVert provincial subsidy, with an indicated amount of $1,296 for eligible projects. For many clients in Montreal, Laval, Longueuil, on the North Shore, and the South Shore, this financial aid makes choosing a high-efficiency model much more attractive.
At AirGreen, we help our clients understand the eligibility criteria, required documents, and necessary technical information, such as the AHRI number, energy efficiency, and proof of installation.
Practical Advice After Installation
After commissioning, we recommend some simple best practices to the client:
- regularly clean the indoor filters;
- avoid blocking the air outlet with furniture or curtains;
- use a stable temperature rather than frequent large fluctuations;
- keep the outdoor unit clear in winter;
- schedule periodic HVAC maintenance to preserve performance;
- ensure the drain remains clear and functional.
These actions extend the heat pump's lifespan and help maintain good efficiency season after season.
Why entrust AirGreen with this type of installation
A high-efficiency wall-mounted heat pump like the Fujitsu ORION XLTH+ deserves an installation that matches its capabilities. At AirGreen, we approach each project with precision: choosing the right model, thoughtful placement, clean installation, comprehensive technical checks, and post-installation support.
We regularly operate in Montreal, Laval, Longueuil, on the North Shore, and the South Shore, with teams accustomed to the realities of Quebec buildings. This local expertise helps avoid unpleasant surprises and achieve a lasting result, both in terms of comfort and energy efficiency.
A successful installation in Rivière-des-Prairies–Pointe-aux-Trembles
This project perfectly illustrates what a good mini-split installation should accomplish: improving comfort without altering the space, offering reliable performance in winter, effectively cooling in summer, and remaining discreet day-to-day.
The Fujitsu ORION XLTH+ 15,000 BTU installed in Rivière-des-Prairies–Pointe-aux-Trembles perfectly meets these objectives. Thanks to its high efficiency, quiet operation, heating down to -30 °C, and eligibility for LogisVert, it represents a solid solution for Montreal homeowners looking to invest in a reliable and well-installed HVAC system.
The big day, step by step
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 would it look like at your place?
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
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?
No question matches. Write to us: we answer.
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
Every house has its constraints. We see them before we install.
The on-site estimate is free and the quote follows within 24 hours.
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).