Installation of a Windair 17 Mini Split in Outremont, Montreal
A challenging installation, a pristine brick wall, and a silent heat pump. Join us on this journey as AirGreen transforms an Outremont apartment with the Windair 17 Mini Split.

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.
The Perfect Blend of Aesthetics and Efficiency
Meeting Unique Customer Requirements
In the heart of Outremont, Montreal, we at AirGreen recently undertook an installation project that was both challenging and rewarding. Our client's apartment, adorned with a stunning brick wall, had specific aesthetic requirements. They didn't want any unsightly pipes or wires tarnishing the beauty of their living space. Moreover, the proximity of the sleeping quarters to the installation site meant the heat pump had to be whisper-quiet.
Why Windair 17 Mini Split Was the Ideal Choice
After a thorough consultation and understanding our client's needs, we zeroed in on the Windair 17 Mini Split. Here's why:
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Silent Operation: With an interior sound pressure level ranging between 28 to 42 dB(A) and an exterior level at 50.0 dB(A), this machine promises tranquility. No more sleepless nights due to a noisy heat pump!
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Efficiency: Boasting a 17.0 SEER efficiency, the Windair 17 ensures optimal performance without compromising on energy consumption.
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Warranty: A robust 10-10-10 warranty (Compressor - Parts - Labor) underscores the brand's confidence in its product.
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Cooling and Heating Capacity: The unit's 12,000 BTU cooling capacity is complemented by its ability to provide heating even at a chilling -20°C.
The Installation Process: A Tale of Ingenuity
Our team, always up for a challenge, had to think outside the box. The client's insistence on preserving the aesthetics of their apartment meant traditional installation methods wouldn't cut it. Instead of taking the easy way out, we devised a strategy to route the pipes and wires through the ceiling. This approach ensured the brick wall remained untouched and the overall aesthetics of the apartment remained pristine.
Key Specifications of the Windair 17 Mini Split
For those who love the nitty-gritty details, here's a deep dive into the machine's specifications:
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Dimensions:
- Interior (L x D x H): 33.25 x 8.25 x 11.38
- Exterior (L x D x H): 30.8 x 12.6 x 21.3
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Serial Numbers:
- Interior: DWGH12QC-D3DNB2M/I
- Exterior: DWGH12QC-D3DNB2M/O
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Voltage and Gas: Operates at 220V and uses the eco-friendly R-410A Freon.
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Pipes: The unit uses 1/4 - 3/8 pipes, ensuring efficient flow and optimal performance.
A Testament to Our Commitment
This installation in Outremont is not just about setting up a machine; it's a testament to AirGreen's commitment to customer satisfaction. From understanding unique requirements to ensuring the chosen product aligns with those needs, we leave no stone unturned. Our dedication to preserving the aesthetics of our client's space while delivering top-notch HVAC solutions sets us apart.
In Conclusion
At AirGreen, we believe in providing solutions that are tailor-made to our client's needs. This installation in Outremont, Montreal, is a shining example of our dedication, expertise, and commitment to excellence. Whether it's a challenging installation or a simple setup, we approach every project with the same level of enthusiasm and professionalism. So, if you're looking for an HVAC solution that blends aesthetics, efficiency, and affordability, look no further than AirGreen.
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?
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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?
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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).
