Installation of a Canair wall-mounted heat pump in Sainte-Julie
AirGreen installed a Canair wall-mounted heat pump in Sainte-Julie: R-32 efficiency, heating down to -25°C, and immediate comfort. Professional HVAC installation on the South Shore.
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 new installation for four-season comfort
At AirGreen , every HVAC installation project is more than just a mandate: it's a promise of lasting comfort and energy efficiency. Recently, our team traveled to Sainte-Julie , on Montreal's South Shore , to complete the installation of a Canair wall-mounted heat pump . The client, the owner of a single-family home, wanted to replace an old wall-mounted air conditioner with a more efficient system capable of providing heating and cooling all year round.
Choosing the Canair heat pump: efficiency and robustness
The selected model, a Canair 18,000 BTU with R-32 refrigerant , offers exceptional energy efficiency, with a Seasonal Efficiency Ratio (SEER) of 23 and a heating capacity maintained even at -25°C . For a harsh Quebec climate, this type of unit represents a strategic investment: it considerably reduces dependence on electric heating while ensuring constant comfort.
The advantages of the Canair model :
-
Inverter technology for precise power modulation.
-
Smart defrost function adapted to Quebec's climate.
-
Low noise level (only 21 dB in night mode).
-
R-32 refrigerant, more environmentally friendly and more efficient than R-410A.
Preparation and installation on site
Our team responded on a cold winter morning, with the ground still covered in snow —a perfect setting to demonstrate our expertise even in difficult conditions.
Step 1: Preparation of the site
After the initial inspection, we have:
-
Checked the electrical capacity of the existing circuit breaker.
-
Secured the work area and cleared the location of the future condenser.
-
Pre-assembled galvanized wall brackets to accommodate the outdoor unit.
Step 2: Installing the Canair Condenser
The outdoor unit has been carefully installed on a raised PVC base , to avoid any contact with snow and ensure better air circulation.
The refrigeration connections were then carefully bent and insulated to reduce heat loss. A 45-minute vacuum was carried out to remove all traces of moisture from the circuit.
Step 3: Installing the indoor unit
Inside, we positioned the wall unit in the center of the living room to optimize air distribution. Particular attention was paid to the aesthetics:
-
Passing the conduits through a white wall trunking for a clean finish.
-
Electrical connection hidden behind the unit.
-
Checking the sound level and airflow in test mode.
Step 4: Commissioning and final checks
Once the system was pressurized, our technicians checked:
-
The blowing temperature (confirmed at 20°C in heating mode).
-
The vacuum rate and the absence of leakage.
-
Inverter compressor stability and power consumption.
Result: immediate comfort and optimal performance
As soon as it was turned on, the customer noticed the difference: a rapid temperature rise, remarkably quiet operation, and a consistent feeling throughout the room. Thanks to Inverter technology , the heat pump adjusts its power according to demand, ensuring 30% less energy consumption than his old air conditioner.
AirGreen recommendations for a sustainable installation
Our technicians reminded the customer of some essential maintenance tips:
-
Clean the interior filters every 6 to 8 weeks.
-
Clear snow and leaves around the outdoor unit.
-
Have the system checked annually by an AirGreen certified professional.
These simple steps ensure optimal performance and extend the life of the device by several years.
Why choose AirGreen for your heat pump installation?
With hundreds of successful installations in Montreal, Laval, Longueuil, on the North Shore and the South Shore , AirGreen has established itself as a benchmark in residential HVAC systems .
Our strengths:
-
Certified and trained technicians on all major brands (Canair, Gree, Fujitsu, Midea, Sharp, Goodman, etc.).
-
Installations comply with CSA and RBQ standards.
-
Local and fast after-sales service , provided by our own teams.
We believe that a good installation makes all the difference. That's why every project is handled with rigor, precision, and unparalleled attention to detail.
In conclusion
This installation of a Canair heat pump in Sainte-Julie perfectly illustrates AirGreen 's expertise in high-performance HVAC systems. Despite the winter conditions, our team delivered impeccable work, guaranteeing the client four-season comfort and sustainable energy savings .
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.
And 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.
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?
Pick what looks like your need.
Four mistakes we do not make
Flip each card to see what we do instead.
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.
Useful pages for what comes next
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.
Tell us about your house. We come and see it for free.
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).