Installation of a FUJITSU central heat pump in Montreal
Installation of a FUJITSU central heat pump in Montreal with elevated support and optimized configuration. A durable, high-performance HVAC solution adapted to Quebec's climatic realities.
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.
It captures or rejects heat outside. It sits on a level base, above the snow, with free space all around.
The insulated refrigerant lines enter the house through a sealed opening and run to the indoor coil.
A shut-off switch near the outdoor unit isolates it safely for service.
Sitting on the indoor module, it moves heat between the house air and the refrigerant.
Electric furnace or air handler: its fan pushes air through the ducts. The electric backup takes over in extreme cold.
Supply ducts bring air to the rooms; returns bring it back to the unit. Their condition matters as much as the unit's.
It protects the coil and the fan. A dirty filter cuts airflow, so it gets checked regularly.
It runs the heat pump and the backup heat. It must be compatible with the installed system.
Strategic and sustainable HVAC installation under an outdoor structure in Montreal
In a residential area of Montreal, we recently completed a particularly interesting HVAC installation of a FUJITSU central heat pump adapted to Quebec's climatic realities. This installation stands out for its optimized outdoor positioning under an existing structure, offering both protection, performance, and durability.
Behind every project like this, there is in-depth technical analysis, rigorous execution, and attention to detail that make all the difference between an ordinary installation and a truly high-performing long-term installation.
A FUJITSU heat pump designed for Montreal's climate
The installed unit is a FUJITSU central heat pump, using R-32 refrigerant, known for its stable heating and high energy efficiency. In a climate like Montreal, where temperature variations are significant, this type of system offers several concrete advantages:
- Stable heating performance during cold periods
- High energy efficiency
- Quiet operation, both indoors and outdoors
- Possible compatibility with subsidy programs like LogisVert
This type of system is ideal for residences looking for uniform comfort in all rooms, without multiplying visible indoor units.
Specific project challenges and solutions provided
Installation under an existing structure: a deliberate choice
In this project, the outdoor unit was installed under a deck, a configuration that presents both advantages and technical challenges.
Advantages:
- Protection against direct snow accumulation
- Reduced exposure to bad weather
- Better equipment longevity
Challenges:
- Clearance management to ensure good airflow
- Prevention of moisture accumulation
- Easy access for future maintenance
At AirGreen, we carefully validated the distances around the unit to ensure optimal ventilation and avoid any air recirculation, a common problem in this type of installation.
Raised support: an essential decision in Quebec
The outdoor unit was installed on a robust raised support, an often underestimated but critical element in our climate.
This choice allows for:
- Avoiding direct contact with snow and ice
- Reducing vibrations transmitted to the structure
- Ensuring better long-term stability
We systematically use supports adapted to Quebec's winter conditions, which contributes to the overall durability of the system.
Management of refrigerant lines and wiring
In this installation, the refrigerant lines and electrical wiring were carefully routed and protected:
- Use of protective conduits for a clean and durable finish
- Secure wall mounting to prevent movement or premature wear
- Adequate insulation to maintain thermal performance
Particular attention was paid to aesthetics, because an HVAC installation must be as discreet as it is efficient.
Why outdoor positioning is crucial in HVAC
Many homeowners focus solely on the brand or power of the unit, but the location of the outdoor unit plays an equally important role.
Poor installation can lead to:
- A drop in performance
- Ice accumulation
- Premature wear
- Higher maintenance costs
In this project in Montreal, we chose a location that combines:
- Natural protection
- Accessibility for service
- Compliance with necessary clearances
Performance and comfort: what the client actually experiences
After installation, the benefits for the client are immediate:
- Uniform temperature throughout the house
- Reduced variations between floors
- Quiet operation, even during high demand periods
- Better air circulation in served areas
This type of central heat pump improves daily comfort by stabilizing temperature and reducing differences between rooms.
Common errors avoided during this installation
This project perfectly illustrates several errors that we systematically avoid:
1. Installing the unit too close to the ground
We opted for a raised support to avoid problems related to snow, ice, and seasonal accumulations.
2. Neglecting clearances
Even under a structure, the distances around the unit were respected to ensure performance and facilitate maintenance.
3. Poorly protecting connections
Each connection was made with precision to ensure the efficiency, safety, and longevity of the system.
4. Neglecting the final appearance
Conduits, cables, and protections were integrated cleanly and professionally.
The AirGreen approach: precision, experience, and transparency
Every HVAC installation in Montreal, Laval, Longueuil, North Shore, and South Shore is carried out with a clear methodology:
- Complete building analysis
- Sizing validation
- Strategic location choice
- Rigorous installation
- Performance tests and adjustments
Our objective is simple: to deliver a system that works correctly from day one and remains reliable for years to come.
Maintenance and durability: an often underestimated aspect
A well-installed FUJITSU heat pump requires regular maintenance to maintain its performance:
- Filter cleaning
- Connection inspection
- Performance check
- Outdoor unit maintenance
- Removal of debris, leaves, ice, or snow around the equipment
In this type of installation, access under the structure allows for simpler maintenance, which is a significant long-term advantage.
Who is this type of installation for?
This configuration is particularly suitable for:
- Homes with limited space around the building
- Properties with an existing deck or outdoor structure
- Homeowners seeking a discreet solution
- Clients who want to maximize the durability of their equipment
Conclusion: an HVAC installation designed to last
This project in Montreal demonstrates that a successful HVAC installation depends not only on the quality of the machine, but especially on the quality of the execution.
With a FUJITSU central heat pump, combined with a strategic installation, the client benefits from a system that is:
- Efficient
- Durable
- Quiet
- Adapted to Quebec winters
At AirGreen, every detail matters. This approach allows us to deliver reliable, clean, and customized installations for each property.
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 ducts, the current indoor module, the electrical panel and the planned spot for the outdoor unit.
The equipment combination, capacity and price, in writing. We check whether the combination qualifies for assistance programs.
Access protected, old unit disconnected and removed when it is being replaced.
Electric furnace or air handler, with its coil, connected to the supply and return ducts.
On a level base, raised above the snow, with free space all around.
Insulated, they enter through a sealed opening and run to the indoor coil.
Dedicated circuits, accessible disconnect, a thermostat that works with the heat pump and the backup heat.
Leak test, vacuum, start-up, airflow check and a test of both modes.
Filter, thermostat, backup heat in extreme cold: what to know before winter.
- The on-site estimateWe look at the ducts, the current indoor module, the electrical panel and the planned spot for the outdoor unit.
- The quoteThe equipment combination, capacity and price, in writing. We check whether the combination qualifies for assistance programs.
- Getting readyAccess protected, old unit disconnected and removed when it is being replaced.
- The indoor moduleElectric furnace or air handler, with its coil, connected to the supply and return ducts.
- The outdoor unitOn a level base, raised above the snow, with free space all around.
- The refrigerant linesInsulated, they enter through a sealed opening and run to the indoor coil.
- Electrical and thermostatDedicated circuits, accessible disconnect, a thermostat that works with the heat pump and the backup heat.
- Tests and start-upLeak test, vacuum, start-up, airflow check and a test of both modes.
- The walkthroughFilter, thermostat, backup heat in extreme cold: what to know before winter.
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.
- Check the indoor module's filter.
- Clear winter debris from the outdoor unit.
- Test cooling before the heat arrives.
- Check the filter more often in peak season.
- Keep registers and returns clear.
- Watch condensate drainage near the coil.
- Change or clean the filter.
- Test heating and backup heat before the cold.
- Book periodic maintenance.
- Clear snow around the outdoor unit.
- Store nothing in front of the indoor module.
- Note any unusual noise or smell and call us.
Which type of equipment for your project?
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What people ask us about this kind of work
Can I keep my current ducts?
What happens in extreme cold?
Furnace, air handler, ducted: what is the difference?
Are there grants?
Do I need a permit?
How much can I save?
How is the LogisVert assistance calculated?
Will my current thermostat work?
Central or wall units: which one?
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).