Installation of a SHARP ZU1 12,000 BTU Wall-Mounted Heat Pump in Delson
AirGreen installation of a SHARP ZU1 12,000 BTU wall-mounted heat pump in Delson. A quiet and efficient choice, perfect for the South Shore climate. Eligible for LogisVert grants.
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 modern and discreet comfort solution for a South Shore residence
At AirGreen, we recently completed a new installation of a SHARP ZU1 12,000 BTU wall-mounted heat pump in a bright, well-oriented home located in Delson, on Montréal’s South Shore. This project reflects our commitment to sustainable residential comfort, by integrating advanced Japanese technology into a carefully designed living space.
Installation environment: optimizing space without compromising aesthetics
One of the main challenges in this installation was seamlessly integrating the indoor unit into a high-traffic area, located right next to a patio door opening onto a balcony. The goal: avoid interfering with the sliding curtains while ensuring effective air distribution. Thanks to our experience, we completed a high-mounted wall installation of the heat pump, using a discreet line cover to encase the piping, ensuring a clean and aesthetic finish on the white wall of the room.
Equipment selection: the SHARP ZU1 12,000 BTU, a smart choice for optimal comfort
The model installed, the SHARP ZU1 12,000 BTU, is part of the ZU Series, designed specifically for the harsh climate of Quebec. It stands out for:
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Its R-32 refrigerant, eco-friendly and efficient, reducing environmental impact by 30% compared to R-410A.
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A heating range down to -27°C, delivering consistent performance even during Québec’s coldest winter days.
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Exclusive Plasmacluster technology, which purifies the air by eliminating viruses, allergens, mold, and persistent odors.
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High energy efficiency, with a SEER of 21/22 and an HSPF of 12.5 / 11, providing significant savings on electricity bills.
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Whisper-quiet operation (as low as 23 dB in standby mode), ideal for living spaces.
Technical installation: speed, precision, and environmental consideration
Our technicians installed the indoor unit with millimeter precision to optimize the natural drainage of condensation, while complying with all electrical safety codes. The outdoor unit, more compact than average, was strategically placed at the back of the building to allow easy access for annual maintenance, while being protected from snow buildup.
The refrigerant line length did not exceed 5 meters, which optimizes performance and reduces thermal loss. All connections were hermetically sealed and vacuum tested to ensure maximum durability.
Benefits for the client: a smart investment
The homeowner now enjoys:
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A two-in-one system (heating and cooling) that is compact, discreet, and high-performing.
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Healthier indoor air, thanks to integrated Plasmacluster technology.
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Better temperature control in the main living area, with no noise or uncomfortable drafts.
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Eligibility for Hydro-Québec’s LogisVert grant program, with a potential rebate of several hundred dollars.
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An extended warranty of up to 10 years on parts, compressor, and labor (under certain conditions).
What sets AirGreen apart
Each installation is tailored to the unique layout of the home. We take the time to:
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Assess the thermal load of the room to recommend the correct capacity.
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Advise on the optimal placement of the indoor and outdoor units.
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Work meticulously for a discreet and long-lasting setup, respecting construction codes and aesthetic preferences.
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Support our clients with grant applications and preventive maintenance.
Why the SHARP ZU1 12,000 BTU is a great choice for Delson and the South Shore
With extreme winter temperatures and increasingly hot summers, the Delson area needs reliable and efficient HVAC solutions. The SHARP ZU1, certified to perform efficiently down to -27°C, is a top-tier choice for homes in the region. Plus, its low-power operation in "energy-saving mode" aligns with the growing environmental awareness of Québec households.
Tips for owners of wall-mounted heat pumps
To ensure the longevity and performance of your heat pump:
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Schedule a full annual maintenance (filter cleaning, pressure check, system disinfection).
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Keep the outdoor unit clear in winter (remove snow and ice around it).
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Use automatic mode to let the system adjust its speed based on the actual room temperature.
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Avoid lowering the temperature too much at night, as it can affect natural regulation and increase energy usage.
Conclusion: a well-executed project, a satisfied customer
This installation in Delson is a perfect example of AirGreen’s expertise: clean, precise, efficient, and personalized work. By choosing the SHARP ZU1 12,000 BTU wall-mounted heat pump, our client now enjoys superior indoor comfort, while saving energy and contributing to a healthier environment.
Do you live in Delson, La Prairie, Candiac, Brossard, or anywhere else on the South Shore? Thinking of installing a wall-mounted heat pump? Call AirGreen, your local expert in high-end HVAC installations.
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.
What the unit delivers when it is cold
The range as published on airgreen.ca: pick a size to see its capacity in deep cold.
| Size | Heating at −8 °C | Heating at −15 °C | Coldest certified point | COP at −15 °C | SEER | HSPF | Indicative LogisVert aid |
|---|---|---|---|---|---|---|---|
| Sharp ZU1 12 000 | 14,500 | 12,000 | −27 °C: 7,200 | 2.11 | 22.0 | 11.0 | $1,740 |
| Sharp ZU1 15 000 | 18,100 | 15,300 | −27 °C: 10,100 | 2.1 | 24.0 | 11.0 | $2,172 |
| Sharp ZU1 18 000 | 22,000 | 18,000 | −27 °C: 11,500 | 2.2 | 24.0 | 11.0 | $2,640 |
| Sharp ZU1 24 000 | 22,400 | 19,000 | −27 °C: 12,300 | 2.2 | 22.0 | 11.0 | $2,688 |
According to NEEP, it delivers 14,500 BTU/h at −8 °C (17 °F), more than at 8 °C (14,000 BTU/h). It heats as hard in moderate cold as in mild weather.
According to NEEP, its certified maximum capacity at −27 °C (−17 °F) is 7,200 BTU/h, 60% of its nominal 12,000 BTU size.
At 8 °C, its certified maximum capacity reaches 17,100 BTU/h, 42% more than its nominal 12,000 BTU size.
According to NEEP, it delivers 18,100 BTU/h at −8 °C (17 °F), more than at 8 °C (18,000 BTU/h). It heats as hard in moderate cold as in mild weather.
According to NEEP, its certified maximum capacity at −27 °C (−17 °F) is 10,100 BTU/h, 67% of its nominal 15,000 BTU size.
At 8 °C, its certified maximum capacity reaches 21,800 BTU/h, 45% more than its nominal 15,000 BTU size.
According to NEEP, it delivers 22,000 BTU/h at −8 °C (17 °F), more than at 8 °C (21,600 BTU/h). It heats as hard in moderate cold as in mild weather.
According to NEEP, its COP at −27 °C is 1.88: the highest of the ZU1 line, which ranges from 1.79 to 1.82 at that temperature.
According to NEEP, its certified maximum capacity at −27 °C (−17 °F) is 11,500 BTU/h, 64% of its nominal 18,000 BTU size.
At −27 °C, its certified minimum capacity is 3,200 BTU/h (5,500 at 8 °C). It slows down instead of cycling on and off.
According to NEEP, its certified heating capacity at −15 °C (5 °F) is 19,000 BTU/h, 79% of its nominal 24,000 BTU size. Its COP there is 2.20.
Data read live from the airgreen.ca page of each size (NEEP / AHRI certified performance). When the title names the installed size, it is highlighted; otherwise the whole range is shown. The aid shown is today’s, using Hydro-Québec’s rule ($120 per 1,000 BTU/h at −8 °C); amounts quoted in the article date from its publication. Only Hydro-Québec confirms the assistance granted.
And at your place?
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Baseboards and electric furnaces turn 1 kWh of electricity into 1 kWh of heat. A heat pump delivers more: that is its COP. At Hydro-Québec’s rate D (11.142¢/kWh above 40 kWh a day, since 1 April 2026):
Hydro-Québec: a heat pump can be up to three times more efficient than baseboards for heating in the colder months.
Estimate per kWh of heat, at the chosen temperature, using the certified COP from the product page. Taxes, access charge and backup heat not included.
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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Four mistakes we do not make
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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?
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).