Installation of a Sharp THU Wall-Mounted Heat Pump in Villeray–Saint-Michel–Parc-Extension
Find out how our Sharp THU installation on a Montréal rooftop brings silent operation and air purification directly to your living space.
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Exceeding Expectations with Every Installation
Unpacking the Challenge
Nestled in the diverse and bustling Villeray–Saint-Michel–Parc-Extension neighborhood, a unique project unfolded for the AirGreen team. This wasn't just another routine installation; it was a challenge that tested our adaptability and commitment to customer satisfaction. Our task was to install a state-of-the-art Sharp THU wall-mounted heat pump, an endeavor that came with its own set of complex demands.
The Heart of the Installation
The centerpiece of this project was the Sharp THU wall-mounted heat pump, a marvel in HVAC technology renowned for its 24.0 SEER efficiency and robust 12,000 BTU cooling capacity. Engineered to provide optimal comfort, this unit features Plasmacluster technology, which not only enhances air quality but also neutralizes airborne bacteria and viruses, making it an excellent choice for health-conscious homeowners.
Key Features of the Sharp THU:
- Energy Star® certified
- Plasmacluster technology for air purification
- AHRI Certified with serial numbers AY-XP12THU and AE-X12THU
- 100% heating capacity down to -27°C
- Rotating flap swivels up to 180°
- 10-year warranty on parts, compressor, and labor
A Complex Installation Tailored to Client Needs
The installation site presented its own narrative—a rooftop setting that demanded precision and careful planning. Our customer’s preference to place the exterior unit on the roof to avoid noise and disruption on the sides of the building was a primary focus. This required not only technical expertise but also a creative approach to ensure that the unit was both functional and unobtrusive.
Steps of Installation:
- Site Assessment: Rigorous testing of the existing infrastructure revealed that the old pipes were compromised with holes, necessitating their replacement.
- Custom Pipe Installation: New pipes were installed, tailored to the specifications of the Sharp THU unit, ensuring optimal performance and durability.
- Rooftop Placement: The external unit was securely mounted on the roof, an unusual but customer-centric aspect of this project, emphasizing our dedication to bespoke solutions.
- Sound Optimization: Special care was taken to ensure that both the indoor and outdoor units operated within the sound pressure levels of 25/49 dB(A) and 50.0 dB(A) respectively, affirming a quiet and comfortable environment.
Customer Satisfaction and Beyond
The completion of the installation was met with customer elation. Not only was the Sharp THU heat pump installed flawlessly, but the customer was also thrilled with the additional features such as the 10-year comprehensive warranty and the air purification capabilities that promise a healthier living space.
The Hydro-Québec Grant: A Financial Win
Adding to the excitement was the $425 Hydro-Québec Grant, which the customer availed for this installation. This financial incentive, coupled with the unit’s energy efficiency and extended warranty, presented a package that was both economically and environmentally beneficial.
Why Choose AirGreen?
Our commitment at AirGreen goes beyond just installing HVAC systems. We strive to transform your living spaces into zones of comfort and efficiency. Our approach is characterized by:
- Tailor-made solutions that respect client needs and architectural aesthetics
- High-quality equipment like the Sharp THU, known for its reliability and cutting-edge features
- Professional execution that ensures each project is completed on time and to the highest standards
The job tools
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.
How the job unfolds
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 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.
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
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).