Installation of a Gree Flexx Electric Furnace in Montreal
Experience the new standard in home comfort with the Gree Flexx Electric Furnace, backed by a stellar 12-year warranty and a robust performance that always keeps you warm!
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.
Transforming Comfort with Innovative Technology
Project Overview
When it comes to home comfort, AirGreen is a name that stands out in the bustling cities of Montreal, Laval, Longueuil, North Shore, and South Shore. Our latest project in Montreal is a testament to our dedication to quality, efficiency, and customer satisfaction. We recently had the pleasure of installing a Gree Flexx 3 Ton Electric Furnace, a choice driven by innovation and backed by solid financial incentives like the LogisVert Grant from Hydro-Québec.
Choosing the Right Furnace: Why Gree Flexx?
The homeowner's previous furnace was a frequent source of distress, breaking down every few years and causing significant discomfort during the harsh Canadian winters. When the opportunity arose to upgrade their system under the Hydro-Québec LogisVert Grant, which offers a $2,880 incentive for a combined system with a heat pump and an electrical furnace, the Gree Flexx model stood out for several compelling reasons:
- Long-Term Reliability: This model comes with a 12-year warranty on parts and compressor, ensuring peace of mind for over a decade.
- Superior Performance: The Flexx model is renowned for its operational efficiency, offering up to 20 SEER in energy efficiency and 10.5 HSPF for heating performance, making it one of the most cost-effective choices on the market.
- Adaptable Capacity: Designed to adjust between 2 and 3 tons, this system accommodates varying needs for heating and cooling throughout the year.
- Environmental Consideration: Utilizing R-410A, a more environmentally friendly refrigerant, this system aligns with current green standards without compromising performance.
Installation Highlights
The installation process was straightforward, thanks to the relatively simple replacement nature of the job. Yet, our team's meticulous approach ensured excellence at every step:
- Reuse and Recycle: By reusing the existing pipes and electrical wires from the old setup, not only did we minimize waste, but we also passed on significant cost savings to the customer.
- Quality Checks: We thoroughly inspected and cleaned the old pipes to ensure no leaks or residues would compromise the new system. This attention to detail guarantees that the system runs efficiently and effectively.
- Customer Education: Post-installation, our team took extra time to educate the homeowner about their new system's features, ensuring they could make the most out of their advanced heating solution.
Exceeding Expectations
Our customer's reaction was nothing short of ecstatic. Not only did they benefit financially from the grant and save on future maintenance costs, but they were also impressed by the quiet operation of the system—as low as 45 dB(A)—and its robust performance in extreme temperatures, functioning effectively down to -30°C. The additional features such as the Eco Mode, Wi-Fi control thermostat compatibility, and automatic functions like changeover and fan speed control were the icing on the cake.
Why AirGreen?
At AirGreen, we don’t just install systems; we transform living spaces into havens of comfort and reliability. Our commitment to quality service and technological acumen makes us a premier choice for anyone looking to enhance their home climate control systems. By choosing us, you choose a partner who stands by you long after the installation is complete, ensuring your home comfort is maintained seamlessly and stylishly.
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.
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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?
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).