Job sheet · Project

Installation of a Sharp wall-mounted heat pump in a condo in Rosemont

Installation of a Sharp wall-mounted heat pump in Rosemont. AirGreen offers comfort, energy efficiency, and expert HVAC service in Greater Montreal.

By AirGreen Climatisation & Chauffage Admin3 min read
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Installation of a Sharp wall-mounted heat pump in a condo in Rosemont
Installation of a Sharp wall-mounted heat pump in a condo in Rosemont
The full story

The article, chapter by chapter

A comfort solution adapted to urban realities

In condominium buildings in the Rosemont–La Petite-Patrie neighborhood of Montreal , space available for heating and air conditioning equipment is often limited. This is why installing aSharp wall-mounted heat pump is a perfectly adapted solution: compact, quiet, and efficient, it blends harmoniously into an urban living space without encroaching on the living area.

Client context and needs

The owner of this condo was looking for an energy-efficient option to maintain optimal comfort in both summer and winter, while reducing his dependence on traditional electric heating. The natural choice was a Sharp wall-mounted heat pump , renowned for its reliability and energy efficiency, particularly in high-density residential environments like Rosemont.

The characteristics of the installed unit

  • Brand: Sharp

  • Type: Wall-mounted heat pump (mini-split)

  • Capacity: 12,000 BTU , ideal for the target area (approximately 35 m² – living room and open space).

  • Energy performance : Energy Star certified, stable operation down to -25°C.

  • Noise level : less than 22 dB at low speed, an essential criterion in co-ownership.

This unit offers an excellent compromise between energy efficiency , quiet comfort and eligibility for provincial subsidies (notably LogisVert and Hydro-Québec, according to seasonal efficiency criteria).

Technical challenges encountered

Moving into a condo often involves structural and regulatory constraints :

  • Load-bearing walls require precise and limited drilling.

  • Refrigerant pipes must be routed in an aesthetic manner, respecting the rules of the co-ownership.

  • Condensate management must avoid any risk of water damage in a restricted indoor environment.

Solutions implemented by AirGreen

Our technicians met these challenges with a methodical approach:

  1. Drilling and routing of the conduits : a discreet route along the ceiling was chosen to minimize the visual impact. The conduits were protected by white capping, blending perfectly into the decor.

  2. Condensate drain management : a gravity slope was chosen to avoid the installation of a noisy lifting pump.

  3. Safety and Compliance : The unit has been fixed to a sturdy interior wall, with anti-vibration sealing to prevent any sound resonance.

Results obtained

Upon startup, the customer noted:

  • Uniform freshness in the living room and adjacent space.

  • A significant reduction in electricity consumption compared to a portable air conditioner.

  • A gain in acoustic comfort , the unit operating almost inaudibly, a major advantage in an urban environment.

The benefits of choosing AirGreen for your HVAC installation

At AirGreen , we combine technical expertise with in-depth knowledge of Montreal realities. Our teams:

  • master the constraints of urban buildings (condos, duplexes, plexes, residential towers),

  • advise on available grants to maximize savings,

  • provide a turnkey HVAC installation , respecting standards and ensuring the peace of mind of occupants.

Maintenance and durability

A properly maintained Sharp heat pump can easily exceed 15 years of service. Our recommendations:

  • Cleaning the filters every 2 to 3 months,

  • Annual inspection by a certified technician to check the tightness of the refrigerant circuit and the performance of the components,

  • AirGreen Service Plan to extend the manufacturer's warranty and ensure peace of mind.

Conclusion

The installation of this Sharp wall-mounted heat pump in a Rosemont condo perfectly illustrates AirGreen's ability to adapt its HVAC solutions to the constraints of dense urban environments. The client now benefits from an energy-efficient, quiet, and durable system, supported by the expertise of our team.

Your numbers

The job tools

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.

    The steps

    How the job unfolds

    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.
    The tour

    What we check on a job like this one

    Each number is a point we check on site. Switch between summer and winter to watch air and heat move.

    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.

    At your place

    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.

    0 / 6 checked
    Maintenance

    Good habits, once the unit is in place

    Six simple habits that keep the unit going. Your list stays on this device.

    0 / 6 checked
    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.
    For your project

    The right pages, at the right time

    True or false

    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.

    2. You pick the capacity with a simple square-footage rule.

    3. A multi-zone connects several indoor heads to a single condenser.

    4. The disconnect can sit behind the patio furniture.

    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.

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    An on-site estimate, the right capacity, the right equipment.

    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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    • QuoteWithin 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).

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