Installation of a GREE FLEXX Central Heat Pump in Montreal
Find out how a Montreal homeowner turned a broken heat pump into a high-efficiency GREE FLEXX system with AirGreen – comfort and savings guaranteed!
Take a tour of the installation
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.
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.
A New Era of Home Comfort: Seamless and Smart
When it comes to achieving perfect home comfort in Montreal, the installation of a GREE FLEXX Central Heat Pump represents a significant advancement. AirGreen, a leading HVAC service provider in Montreal and its surrounding areas, recently undertook a project that not only enhanced a local homeowner's comfort but also provided an exceptional example of modern HVAC solutions in action.
Project Overview
Our recent project in Montreal involved replacing an outdated heating and cooling system with the state-of-the-art GREE FLEXX Central Heat Pump. This 3 TON unit is not just any heat pump; it comes equipped with features designed to optimize home comfort and energy efficiency.
Why GREE FLEXX?
The GREE FLEXX model stands out due to its impressive specifications:
- Efficiency: 18.0 SEER, 11.0 HSPF, and 10.0 EER ratings
- Warranty: 12-year coverage on parts and the compressor
- Design: Compact with dimensions of 37 x 18.13 x 32.25 inches
- Quiet Operation: The outdoor unit operates at a low sound pressure level of 57 dB(A)
Installation Details
Our installation team described the job as relatively straightforward. The customer, initially seeking a repair for their old unit, was advised of the economic inefficiency and short-term nature of repairing an aging system. Instead, opting for a new GREE FLEXX system not only resolved the immediate issues but also offered long-term peace of mind.
The highlight of this project was the seamless integration of both a heat pump and an electric furnace. By choosing the complete system, the customer qualified for a significant $2880 grant from Hydro-Québec's LogisVert Program, enhancing the value of their investment.
Customer Satisfaction
The client was particularly impressed with how the situation was handled. Initially contacted for a repair, our diagnostic process revealed that a new installation would be more beneficial in the long run. We credited the diagnostic fees toward the new system, demonstrating our commitment to customer care and satisfaction. This approach not only saved the customer money but also avoided future stress and potential system failures.
Highlighted Features of the GREE FLEXX
The GREE FLEXX is not just about heating and cooling your home; it's about doing it smartly and efficiently:
- Automatic Fan Speed Control adapts to your comfort needs without manual adjustments.
- Scheduled Drying Function reduces humidity efficiently.
- Self-Diagnosis with Digital Display ensures any issues are quickly identified and addressed.
- Automatic Restart provides convenience in the event of a power interruption.
- Wi-Fi Thermostat Control allows for remote adjustments, ensuring your home is comfortable before you even walk through the door.
Why Choose AirGreen for Your HVAC Needs?
Choosing AirGreen means opting for expertise, reliability, and customer-focused solutions. We not only install; we transform how you experience comfort in your home. Our team is equipped to handle projects of any scale, from simple installations to complete system overhauls, in Montreal, Laval, Longueuil, and both the North Shore and South Shore areas.
Our Commitment: Ensuring each client receives a tailored solution that maximizes comfort, efficiency, and sustainability.
Looking Forward
As we continue to serve the Greater Montreal area, our focus remains on delivering high-quality, reliable HVAC solutions that not only meet but exceed our customers' expectations. Our installation of the GREE FLEXX Central Heat Pump in Montreal is a testament to our dedication to quality and service excellence.
The big day, step by step
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.
What would it look like 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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
Four statements: true or false?
It all comes down to details you have just seen.
1. A central heat pump uses the house's ducts.
It connects to the existing ducts to heat and cool everywhere.
2. In extreme cold, electric backup heat can take over.
The indoor module (furnace or air handler) works with the heat pump and takes over in extreme cold.
3. The filter only gets changed when the unit breaks down.
A dirty filter cuts airflow. It gets checked regularly.
4. You can reuse the old unit's size without checking.
The house may have changed: insulation, windows, added rooms. Capacity is confirmed on site.
0 / 4 right answers
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?
No question matches. Write to us: we answer.
More jobs to see, near you
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Each dot: a town where AirGreen has published projects. The glowing dot: this job.
Every house has its constraints. We see them before we install.
The on-site estimate is free and the quote follows within 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).