Installation of a Gree Gainable Concealed Duct System on the North Shore
Learn how our expert team seamlessly integrated an 18,000 BTU Gree Concealed Duct System, delivering whisper-quiet and energy-efficient comfort throughout the home.
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The article, chapter by chapter
Why This Concealed Duct System Installation Stands Out
In the quest for a harmonious blend of performance, efficiency, and discreet aesthetics, we embarked on a mission to install the Gree Gainable Concealed Duct System on the North Shore. As HVAC experts, we pride ourselves on delivering tailored comfort solutions that address the unique needs of every space, and this installation was no exception. Here’s an inside look at the meticulous planning and expert execution that set this project apart.
The Challenge: Efficient Comfort Without Compromise
The homeowner’s top priority was an invisible yet efficient heating and cooling system that could seamlessly blend into their beautifully curated interior. They wanted consistent comfort across multiple rooms without bulky wall units interrupting the clean lines of their design. Enter the Gree FM Concealed Duct System—a solution that ticked all the right boxes.
What Makes the Gree Concealed Duct System a Game-Changer
Compact Power and Whisper-Quiet Performance
The Gree system, with its 18,000 BTU capacity, was an ideal choice for this project, allowing for efficient climate control without disrupting the home’s serenity. Each of the three 6,000 BTU ducts we installed was strategically placed to maintain even air distribution, guaranteeing that every corner of the home enjoyed optimal comfort.
- Low Static Pressure: The unit is engineered to operate efficiently in concealed spaces, ensuring quiet operation even during peak performance.
- Sound Levels: Ranging from a mere 33 to 41 dB(A), this system ensures a tranquil environment, perfect for family gatherings or quiet nights in.
- Energy Efficiency: Certified by Energy Star, this unit minimizes energy consumption, translating to lower utility bills and a smaller carbon footprint. The use of R-410A refrigerant further aligns with our environmental commitment.
Smart Features for Seamless Integration
- Flexible Installation Options: The system allows for air return from either the bottom or the back, a crucial feature that provided us with greater flexibility given the unique layout of the house.
- Integrated Condensate Pump: We integrated this pump to ensure efficient water drainage, eliminating worries about leaks or system downtime.
- Sentry Float Switch: This built-in safety mechanism offers protection against overflows, boosting the system’s reliability.
The Installation Process: Precision and Expertise
Step 1: Custom Planning and Space Assessment
We began with an in-depth consultation to understand the homeowner’s needs and evaluate the architectural constraints. The low ceiling spaces and narrow utility areas posed a challenge, but our team’s extensive experience with concealed duct systems enabled us to map out the perfect plan.
Step 2: Precise Ductwork and Unit Placement
Our next task was the strategic placement of the three concealed air outlets. Each one was installed in a way that optimized airflow while preserving the room’s aesthetics. The compact size of the Gree FM unit (35.38 x 7.88 x 24.25 inches) made it easy to tuck into an existing cabinet space, invisible to the naked eye but undeniably effective in operation.
Step 3: Electrical and Piping Work
Running 3/8 - 5/8 inch piping with precision was critical for this project. Given the home’s layout, our technicians carefully routed the lines to minimize visibility while ensuring the highest system efficiency. We also paid close attention to the unit’s sound levels, using additional insulation where needed to keep the operation as quiet as possible.
Why Choose AirGreen for Your HVAC Installation?
At AirGreen, our reputation rests on our commitment to quality and attention to detail. We take pride in crafting personalized solutions that not only meet but exceed our clients’ expectations. Whether it’s a central heat pump or a low-static concealed duct system, our team ensures that every installation is flawless, efficient, and built to last.
Our Guarantees
- Full Transparency: We walk our clients through every aspect of the installation, keeping them informed and empowered.
- Certified Expertise: Our technicians are trained in the latest HVAC technologies, ensuring a professional and code-compliant installation.
- Unmatched Customer Support: From post-installation maintenance to addressing any concerns, we’re always a call away.
In Conclusion
This Gree Gainable Concealed Duct System installation on the North Shore is a testament to our dedication to marrying form and function. The homeowner now enjoys a seamless climate control experience, with a system that operates in the background yet delivers comfort front and center. If you’re looking for an HVAC partner who values precision, efficiency, and aesthetics, look no further than AirGreen.
Ready to elevate your comfort game? Contact AirGreen today and let’s start planning your custom HVAC solution.
The job tools
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.
How the job unfolds
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 we check on a job like this one
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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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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).