Installation of a FUJITSU ORION XLTH+ 15,000 BTU wall-mounted heat pump in Westmount
HVAC installation in Westmount of a 15,000 BTU FUJITSU ORION XLTH+ heat pump. High-performance solution for heating down to -30°C, efficient air conditioning, and energy savings in Greater Montreal.
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 highly strategic HVAC installation in the heart of Westmount
In a neighborhood renowned for its elegant residences and typical brick constructions, our AirGreen team recently completed a FUJITSU ORION XLTH+ 15,000 BTU wall-mounted heat pump installation in Westmount. This seemingly simple project involved several technical challenges related to the outdoor environment, aesthetic integration, and the severe winter conditions present during the intervention.
Upon our arrival at the site, one thing was evident: the client was looking for a reliable extreme heating solution that was quiet and could be harmoniously integrated into the existing architecture. The choice of the FUJITSU ORION XLTH+ model naturally stood out.
A heat pump designed for the harsh winters of Greater Montreal
Exceptional performance down to -30 °C
The installed model, a FUJITSU ORION XLTH+ 15,000 BTU wall-mounted heat pump, is specially designed for Quebec's climatic realities. In Westmount, as everywhere in Montreal, periods of intense cold are frequent. This system offers stable heating capacity down to -30 °C, which allows for:
- drastically reducing the use of electric baseboards
- maintaining constant comfort throughout the served area
- ensuring heating continuity even during cold snaps
During this installation, the priority was clear: to offer the client a system capable of effectively replacing part of the existing heating, while optimizing energy costs.
Energy efficiency and LogisVert subsidy
This unit benefits from excellent energy performance, with:
- SEER2: 28.7
- HSPF2: 13.0
- Refrigerant: R-32
It is also eligible for the LogisVert subsidy ($1,296), a decisive factor for many homeowners in Greater Montreal, including Laval, Longueuil, the North Shore, and the South Shore.
In this project in Westmount, we assisted the client in validating their eligibility, thus simplifying the entire process.
Technical challenges encountered during installation
Outdoor installation in winter conditions
As can be seen on the construction site, the installation took place in winter, with snow and frost on the ground. This type of context requires particular rigor.
We proceeded with:
- an elevation of the outdoor unit on a metal support
- strategic positioning to avoid snow accumulation
- optimized management of defrost drainage
The FUJITSU outdoor unit was installed above ground level, an essential practice to prevent:
- ventilation blockages
- ice accumulation
- heating performance losses
Integration on brick wall: precision and aesthetics
The typical Westmount brick exterior wall presented another challenge. Our refrigeration technicians performed:
- precise drilling to preserve the integrity of the cladding
- clean installation of refrigeration lines
- effective concealment of lines for an aesthetic finish
Every detail counts in this type of neighborhood where exterior appearance is as important as technical performance.
Management of electrical connections
On site, existing electrical boxes required careful adaptation. We:
- secured the connections
- complied with current electrical standards in Quebec
- optimized cable routing for a durable installation
Result: a safe, compliant, and perfectly functional installation.
Why the FUJITSU ORION XLTH+ is a smart choice in Westmount
Advanced Inverter Technology
This system uses an Inverter compressor that adjusts its power in real-time. This concretely allows for:
- stable temperature without fluctuations
- optimized energy consumption
- extended system lifespan
Silent Comfort
In a residential environment like Westmount, silence is essential. This heat pump offers:
- only 26 dB(A) for the indoor unit
- approximately 51 dB(A) for the outdoor unit
This means the system is practically imperceptible in daily life.
Four-season versatility
This model ensures:
- efficient heating in winter
- effective air conditioning in summer
- dehumidification in mid-season
For this client, it represented a complete solution without compromise.
Client feedback: immediate comfort and visible savings
A few days after the installation, the client quickly noticed:
- more uniform heat in the main living area
- reduced reliance on electric baseboards
- a very low noise level
This type of feedback is common in our projects in Montreal, Laval, and Longueuil, particularly with the FUJITSU range.
AirGreen tips for optimal installation
Avoiding common mistakes
In similar projects, we often see mistakes such as:
- an outdoor unit installed too close to the ground
- poor orientation of indoor air
- inadequate sizing
At AirGreen, every project includes a complete building analysis, including:
- insulation
- room layout
- wind exposure
- actual heating and cooling needs
Importance of outdoor unit positioning
In this installation in Westmount, the choice of positioning was crucial. We always recommend:
- a clear location
- protection against snow accumulation
- easy access for maintenance
Recognized HVAC expertise in Greater Montreal
At AirGreen, we perform similar installations in:
- Montreal
- Laval
- Longueuil
- North Shore
- South Shore
Our approach is based on:
- meticulous installation
- total transparency
- advanced technical expertise
Every project is treated with the same level of demandingness, whether it's a condo, a single-family home, or a multi-dwelling building.
Conclusion: an installation perfectly suited to the climate and the building
This FUJITSU ORION XLTH+ wall-mounted heat pump installation in Westmount perfectly illustrates the importance of a job well done. Between winter constraints, the brick wall, and aesthetic requirements, every step was carried out with precision.
The result is a system that is:
- efficient
- quiet
- durable
- perfectly adapted to the Quebec climate
For any wall-mounted heat pump, wall-mounted air conditioner, or HVAC installation project in Greater Montreal, our team remains a benchmark for quality and reliability.
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.
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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).