Installation of a Gree Flexx Electric Furnace in Westmount, Montreal
Experience how a Gree Flexx transformed a Westmount home with its silent operation and unmatched warranty—comfort redefined by AirGreen.
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.
The Warmth of Innovation: How a Gree Flexx Transformed a Westmount Home
The Challenge of an Aging System
In the quaint, picturesque neighborhood of Westmount in Montreal, a typical household faced a recurring dilemma with their old heating system. Every few years, the furnace would falter, leaving the residents in the cold during the harsh Quebec winters. This year, however, the decision was made to embrace a change that promised efficiency and peace of mind: the installation of a Gree Flexx Electric Furnace.
Choosing the Gree Flexx: A Decision Driven by Warranty and Efficiency
The choice of the Gree Flexx was influenced by several compelling factors. Foremost was the 12-year warranty on parts and compressor—unmatched in the industry and a testament to the manufacturer's confidence in their product. Additionally, the electric furnace qualified for the LogisVert Grant from Hydro-Québec, a substantial financial incentive that encourages residents to upgrade to more energy-efficient systems.
Installation Day: Precision and Professionalism
The installation process was straightforward, given the simple yet meticulous requirements of the job. The team from AirGreen, equipped with extensive experience and a customer-centric approach, undertook the task. Old pipes and wiring from the previous setup were reused, not only to minimize waste but also to honor the home's existing infrastructure. This approach exemplified our commitment to sustainable practices without compromising on quality.
Ensuring Integrity of the System
Before the new unit was installed, the old pipes were rigorously checked for leaks and cleaned thoroughly. This ensured that no remnants from the past would hinder the performance of the new system. Such attention to detail is often overlooked, but at AirGreen, it is a standard part of our protocol, reflecting our dedication to delivering a flawless service.
Accommodating the Existing Humidifier
A unique aspect of this installation was the integration of the household's existing humidifier. It was crucial for us to carefully disconnect and reconnect this component, ensuring that the system's overall functionality was seamless. This customization highlighted our ability to tailor our services to meet specific client needs, enhancing the personal touch that defines our work.
Features of the Gree Flexx Electric Furnace
The Gree Flexx is not just another furnace; it is a pinnacle of heating technology. Here are some of the standout features:
- Energy Efficiency: With up to 20 SEER and 10.5 HSPF, it operates with remarkable efficiency.
- Adaptability: This model can heat effectively in temperatures as low as -30°C, ensuring comfort even in the deepest freeze.
- Quiet Operation: The external sound pressure is as low as 45 dB(A), making it one of the quietest in its class.
- Advanced Controls: Features like eco mode, powerful operation mode, and an illuminated wireless remote control provide ease of use and additional comfort.
- Safety and Convenience: Automatic restart after power failures and a timer function with optional Wi-Fi control via a thermostat add layers of convenience and safety.
Client Satisfaction: A Testament to Our Commitment
Post-installation, the homeowner expressed immense satisfaction with both the product and the service. The performance of the Gree Flexx and the professionalism displayed by AirGreen's team were key factors in this positive outcome. Their endorsement is not just about a job well done but about a relationship built on trust and enhanced comfort that we aim to provide every client.
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?
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Will my current thermostat work?
Central or wall units: which one?
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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).