Project

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.

By AirGreen Climatisation & Chauffage Admin3 min read
Installation of a Windair 17 Mini Split in Outremont, Montreal
Installation of a Windair 17 Mini Split in Outremont, Montreal
Generic diagram: wall-mounted heat pump, indoor and outdoor units

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.

  1. 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.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. 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:

  • 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!

  • Efficiency: Boasting a 17.0 SEER efficiency, the Windair 17 ensures optimal performance without compromising on energy consumption.

  • Warranty: A robust 10-10-10 warranty (Compressor - Parts - Labor) underscores the brand's confidence in its product.

  • 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:

  • 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
  • Serial Numbers:

    • Interior: DWGH12QC-D3DNB2M/I
    • Exterior: DWGH12QC-D3DNB2M/O
  • Voltage and Gas: Operates at 220V and uses the eco-friendly R-410A Freon.

  • 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.

The steps

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.

Step 1 of 9The on-site estimate

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.

  1. 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.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

And at your place?

Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.

Size checkYour baseboards, in BTU/h
–BTU/h of installed electric heat

    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.

    Through the seasons

    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.
    And at your place?

    Which type of equipment for your project?

    Pick what looks like your need.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.
    Going further

    Useful pages for what comes next

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    The on-site estimate is free and the quote follows within 24 hours.

    • RBQ licence5645-9605-01 · 15.8, 15.10, 16
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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).

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