Zephyr wall-mounted heat pump installation in LaSalle (Montreal): 4-season comfort and clean installation on a raised support
In LaSalle, AirGreen installed a Zephyr wall-mounted heat pump with a raised outdoor unit, anti-vibration pads and a nearby disconnect switch, for reliable 4-season comfort and a neat residential installation.
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.
When you want consistent comfort year-round, without major renovations and with a discreet solution, a wall-mounted heat pump remains one of the best residential choices. In this project completed in LaSalle , our AirGreen team installed a Zephyr wall-mounted heat pump (mini-split system) with an exterior installation designed for durability, aesthetics, and performance in Quebec's climate.
A typical project in LaSalle: improving comfort without transforming the house
LaSalle has many houses and plexes where people want to modernize their heating/air conditioning without redoing the entire air distribution system . Here, the objective was clear: to obtain efficient air conditioning , effective supplemental heating , and to reduce discomfort (rooms that are too hot in the summer, temperature variations, noise, etc.).
The chosen solution: a Zephyr wall-mounted inverter type heat pump (exact model not visible in the photo, but typical configuration for a single residential zone ).
Type of machine installed
This is a wall-mounted heat pump (mini-split / wall unit) :
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an indoor unit (not visible in the photo) that distributes the treated air,
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an outdoor unit (visible) which ensures heat exchange.
This format is ideal when you want to target a main area (living room, open area, floor) with excellent performance, while keeping installation relatively quick and clean.
Visible installation details: what has been done (and why it's important)
The photo shows several elements that reflect a well-thought-out residential setup:
1) Outdoor unit on a raised support
The Zephyr unit is placed on a raised metal support , with anti-vibration pads .
Concrete advantages:
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limits vibrations transmitted to the ground and the structure,
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protects the device from standing water, leaves, and debris.
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Winter assistance: better management of snow and ground frost (particularly useful in Montreal).
2) Installation against the surface with clearances
The unit is installed against exterior cladding (siding type), in an accessible space. We always aim for:
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Sufficient clearances to allow for proper air circulation.
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convenient access for maintenance and services.
3) Safe electrical connection
The presence of a disconnect switch/electrical box nearby is clearly visible (to the right of the unit). This is a crucial point:
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compliance,
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safety during maintenance,
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rapid shutdown in case of intervention.
4) Realistic management of the land and daily use
We see a courtyard/patio space with everyday objects (garden hose, walkway). In this type of configuration, our work also involves positioning the unit to avoid conflicts of use :
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do not block traffic,
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to limit the risk of impacts,
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preserve the aesthetics.
Why a Zephyr wall-mounted heat pump in this context?
Without going into “invented” characteristics (since the exact model is not legible), we can realistically explain the choice of Zephyr:
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Inverter technology: better temperature control and increased efficiency.
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More stable comfort (fewer ON/OFF cycles),
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operation is generally quieter than an older, traditional system.
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An excellent option for modernizing a targeted area, especially when you want a real improvement in comfort quickly.
Commissioning: the difference lies in the details
At AirGreen, a successful installation is not just about "placing the machine." Quality is evident in:
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positioning (noise, clearances, maintenance),
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stability (support, anti-vibration),
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electrical safety (wiring, disconnect switch),
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commissioning (functional tests, parameter validation, performance verification).
This is what makes it possible to obtain a heat pump that performs well… and lasts.
The result: a 4-season solution adapted to Montreal
In a neighborhood like LaSalle, this type of installation typically brings:
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efficient air conditioning during hot and humid periods
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a useful supplementary heater in autumn, spring, and for several winter days,
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an immediate improvement in perceived comfort (more uniform temperature, better feel, precise control).
Recommended maintenance (simple, but crucial)
To maintain performance and reliability:
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Clean the filters of the indoor unit regularly.
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Keep the outdoor unit clear of leaves, snow, and ice.
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Schedule periodic maintenance to check the general condition, flow and overall operation.
Conclusion: a clean, durable installation adapted to everyday use
This project in LaSalle perfectly illustrates what we seek to deliver at AirGreen: a Zephyr wall-mounted heat pump installed cleanly, stably, safely , and designed for the reality of a residential home in Montreal — with an elevated outdoor unit, well positioned and ready to withstand the seasons.
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).