Installation of a Gree Flexx Electric Furnace in Montreal
Discover how the Gree Flexx Electric Furnace provides year-round comfort, even in extreme weather conditions. Our latest installation in Montreal showcases top-tier efficiency and reliability!
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.
Taking Heating and Cooling to the Next Level in Montreal
At AirGreen, we take pride in transforming homes with cutting-edge HVAC systems that offer optimal comfort, efficiency, and sustainability. Our recent installation in Montreal was no exception. We had the pleasure of outfitting a local home with the impressive Gree Flexx Electric Furnace, a system that’s redefining indoor comfort for extreme climates. This installation was not just about setting up a furnace; it was about delivering an integrated solution that ensures year-round comfort, even in the most extreme weather conditions.
The Challenge: Heating and Cooling for Montreal’s Climate
Montreal’s weather can be brutal, with harsh winters dropping temperatures to as low as -30°C and hot summers demanding robust cooling solutions. The customer wanted a system that could handle these extremes, with efficient heating for the coldest days and effective cooling for the sweltering heat of summer.
We recommended the Gree Flexx Electric Furnace for its versatility, performance, and energy efficiency. This 2-ton system is perfect for both heating and cooling, offering up to 24,000 BTU of cooling capacity and powerful heating down to -30°C. It’s a perfect fit for homes in Montreal and surrounding areas that face dramatic seasonal shifts.
Why the Gree Flexx is the Perfect Fit
The Gree Flexx is a modern, high-performance electric furnace designed to meet the demands of today’s homeowners. Here’s why this unit stood out for our client:
- Energy Efficiency: With a SEER rating of up to 20 and a HSPF of 10.5, the Gree Flexx ensures energy savings throughout the year.
- Extreme Climate Performance: One of the most impressive features is its ability to heat effectively even at -30°C, which makes it an ideal solution for homes in cold climates like Montreal.
- Quiet Operation: No one wants a noisy system disturbing their peace. The Gree Flexx operates with a sound pressure level as low as 45 dB(A), ensuring quiet comfort.
- Smart Control Features: This unit comes equipped with an illuminated wireless remote control, Wi-Fi compatibility, and Eco Mode for ease of use and efficiency.
- Reliable Warranty: The Gree Flexx comes with a 12-year warranty on the compressor and parts, offering peace of mind for years to come.
A Look at the Installation Process
For this particular installation, we had to account for several important factors to ensure the best results. First, the space where the furnace was to be installed had limited accessibility. This required us to plan carefully, ensuring all the necessary components were in place before starting the installation.
The Gree Flexx system we installed featured:
- 2-ton capacity suitable for heating and cooling medium-sized homes
- Cooling capacity of 24,000 BTU for hot summers
- Voltage of 220V for efficient energy consumption
- Freon (R-410A) refrigerant, which is both efficient and environmentally friendly
- Pipes sized at 3/8 - 3/4 to ensure the smooth flow of refrigerant
We ensured that every element of the system was configured to work efficiently within the existing space. The piping, electrical connections, and drainage were all optimized for long-term reliability.
The Result: A Seamless Integration of Comfort and Efficiency
After completing the installation, we performed a thorough test of the system to ensure everything was running smoothly. The Gree Flexx Electric Furnace exceeded expectations, providing strong airflow, rapid heating, and cool air distribution. Our client was impressed with the quiet operation and the seamless transition between heating and cooling modes.
In addition to its technical prowess, this installation also made the homeowner eligible for the $5,000 “Greener Homes” Federal Grant and the Hydro-Québec Efficient Heat Pumps provincial grant, further reducing the overall cost of upgrading to an energy-efficient system.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we go beyond simple installations. We’re committed to providing holistic solutions that meet the unique needs of every home. Whether it’s choosing the right equipment, ensuring proper installation, or optimizing system performance, we handle every aspect of your HVAC project with expertise and care.
Here’s why our customers trust us:
- Tailored Solutions: We understand that every home is different. Our experts carefully assess your property’s needs and recommend the best HVAC system to suit your requirements.
- Skilled Technicians: Our team is trained and experienced in installing a wide range of HVAC systems, ensuring professional results every time.
- Customer Satisfaction: We don’t consider a job complete until you’re fully satisfied. Our aftercare services and warranties provide peace of mind long after installation.
- Eligibility for Grants: We help our customers maximize their savings by guiding them through the process of applying for relevant provincial and federal grants, such as the Greener Homes and Efficient Heat Pumps programs.
Future-Proofing Your Home
The Gree Flexx Electric Furnace we installed is not just a solution for today—it’s a system that will serve our client for years to come. With its auto-restart function after power failures, automatic changeover for seamless switching between heating and cooling, and timer function for convenience, it’s designed to adapt to the future of smart home living.
Our installation of the Gree Flexx also includes an option for an extended 10-year labor warranty, providing long-term coverage for any issues that may arise. This extra layer of security, combined with the unit’s high energy efficiency, ensures that our client will benefit from lower energy bills and fewer maintenance costs over the long term.
Conclusion: A System Built for Comfort and Efficiency
The installation of the Gree Flexx Electric Furnace in this Montreal home is another success story for AirGreen. With its robust heating capacity, quiet operation, and energy efficiency, this system is a smart investment for homeowners who want a reliable, efficient, and future-proof HVAC solution.
If you're considering an upgrade to your heating and cooling system, now is the perfect time to explore the benefits of the Gree Flexx. Our team at AirGreen is here to help you every step of the way—from choosing the right system to installation and beyond.
Contact us today to schedule a consultation and discover how we can transform your home’s comfort with the Gree Flexx Electric Furnace.
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.
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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).