Installation of a Senville wall-mounted heat pump in Rosemont–La Petite-Patrie
Senville wall-mounted heat pump installed in Rosemont–La Petite-Patrie by AirGreen: performance, energy efficiency, and seamless integration into the Montreal facade. An ideal HVAC solution for four-season comfort.
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 neat installation in the heart of a Montreal plex: performance and discretion combined
In the vibrant Rosemont–La Petite-Patrie neighborhood, where red brick facades tell the story of Montreal, our AirGreen team recently installed a Senville wall-mounted heat pump . The goal of this project: to provide a plex owner with four-season comfort while preserving the unique aesthetic of his building.
The context: modern comfort in a typically Montreal environment
The client wanted to replace an old wall-mounted air conditioner with a complete heating and cooling solution . Cold winters and increasingly hot summers required a reliable, efficient and quiet system. The Senville wall-mounted unit , renowned for its energy efficiency and inverter technology, was the ideal choice.
At AirGreen , we favor equipment that integrates harmoniously with the existing structure, without compromising either the comfort or the appearance of the building.
An installation designed for durability and aesthetics
The Senville heat pump 's outdoor unit was installed on sturdy wall brackets , carefully anchored into the masonry. This positioning ensures excellent air circulation while protecting the equipment from snow accumulations and debris.
The brown duct casing , chosen to complement the red brick, ensures a discreet and elegant finish. This attention to detail is an integral part of our approach: each AirGreen installation must both perform and visually integrate into its surroundings.
Technical details of the installation
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System type: wall-mounted heat pump (mini-split)
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Brand: Senville
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Configuration: Single zone unit
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Mounting: on galvanized wall brackets
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Condensate drainage: gravity, protected by insulation
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Electrical connection: waterproof exterior box connected to the main panel
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Hood: brown to match the front
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Project duration: one full day
Thanks to careful planning and an experienced team, the construction site ran smoothly for the client, with a quick and smooth commissioning.
Four-season comfort from Senville
The installed Senville heat pump provides efficient heating down to -25°C and stable air conditioning even during peak summer heat . The inverter compressor continuously adjusts power according to demand, thus reducing energy consumption.
In heating mode, the heat pump offers remarkable energy efficiency (up to 300% efficiency). In summer, it provides fast, quiet, and consistent air conditioning—ideal comfort for a Montreal plex with stacked living spaces.
Adapted to the realities of Montreal's residential park
The homes in Rosemont–La Petite-Patrie are known for their brick structures and sometimes limited access. This project perfectly illustrates our team's ability to adapt HVAC systems to dense urban settings.
The limited space between the facade and the rear terrace required precise routing of the refrigerant pipes and optimized anchoring of the supports. Our technicians ensured that vibrations were minimized, thus guaranteeing stable and quiet operation .
An economical and ecological solution
Senville heat pumps are distinguished by their Energy Star certification, proven reliability and compatibility with Quebec grant programs such as Chauffez vert and Rénoclimat .
Thanks to this project, the client will benefit from:
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A significant reduction in your annual energy bill;
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A reversible system (heating + air conditioning) without combustion;
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Increased comfort in all rooms of your home.
The AirGreen approach: expertise, precision and proximity
Each AirGreen installation project is based on three pillars:
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A personalized analysis of the needs of each building;
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Meticulous execution in accordance with the latest standards;
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Ongoing support after installation, including seasonal maintenance.
Our residential HVAC technicians are fully familiar with the realities of Greater Montreal's buildings—whether they're plexes, condos, or single-family homes. Their expertise guarantees not only immediate system performance, but also long-term durability .
A result that lives up to expectations
At the end of the project, the owner immediately noticed the difference:
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Reduced noise level both indoors and outdoors;
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A stable and uniform temperature throughout the home;
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A discreet aesthetic , perfectly integrated into the brick facade.
This Senville heat pump installation in Rosemont–La Petite-Patrie reflects our commitment to offering high-performance HVAC solutions, adapted to Montreal's reality.
In summary: a typical Montreal AirGreen installation
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Four-season comfort thanks to a high-performance heat pump;
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Careful finishing integrated into the existing architecture;
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Substantial energy savings ;
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Grants available for rapid profitability;
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AirGreen expertise for sustainable and professional service.
At AirGreen , every installation is a promise: that of lasting comfort, impeccable execution and complete support .
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).