Installation of a Gree Flexx Electric Furnace in Nun's Island
Transform your home with the Gree Flexx Electric Furnace. Exceptional comfort, cutting-edge technology, and sustainability—all in one installation!
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 Harmonious Blend of Technology and Comfort
Project Overview
Nestled on the tranquil Nun's Island, a recent installation by AirGreen has marked a significant enhancement in home heating technology. We took on the challenge of integrating a state-of-the-art Gree Flexx Electric Furnace into a residence, aiming not just for functionality but for an eco-friendly solution. This project wasn't just about installing an appliance; it was about setting a benchmark in efficient and sustainable home heating.
Understanding the Gree Flexx Electric Furnace
Core Specifications
- Brand: Gree
- Model: Flexx
- Type: Electric Furnace
- Capacity: 3 Ton
- Dimensions: 21.25 x 48.25 x 21.25 inches
- Voltage: 220V
- Freon: R-410A
- Pipes: 3/8 - 3/4 inch
Enhanced Features
- Energy Efficiency: Up to 20 SEER and 10.5 HSPF
- Low Ambient Heating: Functional down to -30°C / -22°F
- Noise Level: As low as 45 dB(A)
- Control Options: Includes illuminated wireless remote, optional Wi-Fi control thermostat
- Reliability: Backed by a 12-year warranty
This furnace is not just a device; it's a powerhouse designed to tackle extreme weather, offering continuous comfort without breaking a sweat.
The Challenge and Solution
Installation Complexities
The project on Nun's Island posed unique challenges due to the specific needs for efficient heating in the cold Canadian climate. The Gree Flexx model, renowned for its robust performance even at -30°C, was an ideal choice. However, ensuring seamless integration with the existing infrastructure required meticulous planning and precision.
Technical Precision
Our expert team, equipped with advanced tools and in-depth knowledge, executed a flawless installation. The process involved configuring the system to align with the house's existing ductwork and electrical setups, ensuring optimal airflow and efficiency.
Beyond Installation: A Story of Sustainability
The Gree Flexx is eligible for a $2,880 rebate under the LogisVert Program by Hydro-Québec, thanks to its high energy efficiency and eco-friendly design. This not only makes it an attractive choice for environmentally conscious homeowners but also offers significant savings.
Why Choose AirGreen?
Expertise and Dedication
At AirGreen, we don't just install; we innovate and tailor solutions. Our approach is always customer-centric, ensuring every installation is a testament to our commitment to quality and sustainability.
Tailored Comfort
Choosing us means opting for a provider that listens and adapts. Our installations are not just about fitting a system but about enhancing the comfort and lifestyle of our clients.
Ready for the Future
Investing in a system like the Gree Flexx means preparing for the future. Its adaptability and efficiency lay a foundation for a home that's not only warm but smart.
Conclusion: A Symphony of Technology and Comfort
The installation of the Gree Flexx Electric Furnace on Nun's Island is more than just a project. It's a commitment to superior comfort, enhanced by cutting-edge technology and mindful of our ecological footprint. With AirGreen, experience a service that extends beyond mere technical installation to a transformative home improvement.
This installation is not just about maintaining optimal temperature; it's about setting the stage for years of reliable, efficient, and eco-friendly heating. Why settle for less when you can have the best? Choose AirGreen for your next HVAC project and feel the difference.
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?
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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).