A tailored solution against oppressive humidity on the South Shore
When a family from Saint-Lambert, on the South Shore of Montreal, contacted us, they were at their wit’s end—literally and figuratively. Their home, although charming, was constantly overwhelmed by excess humidity, making the air heavy, uncomfortable, and at times unhealthy, especially during summer heat waves. After several unsuccessful attempts using portable dehumidifiers and fans, this family decided to reach out to AirGreen, a specialist in HVAC installation.
Our diagnosis was swift and clear: the core of the problem stemmed from poor thermal regulation and a lack of centralized humidity control. The solution? A high-efficiency wall-mounted air conditioner, capable of cooling and stabilizing indoor humidity, without disrupting the home’s interior aesthetics.
A strategic choice: the FUJITSU RLS3 12,000 BTU wall-mounted air conditioner
For this project, our team recommended and installed a FUJITSU RLS3 12,000 BTU wall-mounted air conditioner, a unit well-known for its reliability, outstanding energy performance, and advanced dehumidification technology. This model not only delivers fast and even cooling, but is also perfectly suited for medium-sized residential spaces like this South Shore home.
Technical specifications of the FUJITSU RLS3:
-
Capacity: 12,000 BTU, ideal for rooms between 400 and 550 square feet
-
Energy efficiency: SEER of 33, EER of 14.2 (Energy Star rated)
-
Automatic dehumidification function
-
Noise level: ultra-quiet (as low as 21 dB)
-
Smart control via remote or mobile app
-
Eco-friendly R-410A refrigerant
This system proved to be a real ally against humidity and heat. Thanks to its modulation capacity and multi-directional airflow system, it offers custom comfort in every room, even during extreme heat.
An HVAC installation without compromise
The installation was completed in a single day. Our team had to be resourceful to neatly integrate the ducts into an old brick wall, without compromising the home’s interior look. A discreet outdoor conduit was installed on the north side to protect the exterior unit from prevailing winds and direct sunlight, thereby extending its lifespan.
We also took the time to calibrate the system based on the South Shore’s naturally humid environment, known for its sudden swings between rainy days and heat waves.
Customer testimonial: a daily life transformed
“Within the first few hours, we felt an incredible difference in the air. It was no longer stifling. Our kids sleep better, the walls are no longer damp, and even our plants seem happier! Thank you to the entire AirGreen team.” – Caroline M., Saint-Lambert
Why wall-mounted air conditioners are ideal for South Shore homes
1. Perfect for existing residential buildings
Most homes on the South Shore, especially in Longueuil, Brossard, and Saint-Lambert, were built without centralized ventilation systems. The wall-mounted air conditioner is therefore the ideal solution, as it can be installed easily without major renovations.
2. Better humidity control
Unlike portable units or window ACs, a wall-mounted air conditioner like the FUJITSU RLS3 includes an integrated humidity control feature, adjustable to meet the needs of the day.
3. Improved energy performance
In a region like the South Shore, where temperatures fluctuate significantly, choosing an energy-efficient unit is essential for reducing electricity bills while ensuring lasting comfort.
Grants available for the South Shore
This installation qualified for a $650 rebate through Hydro-Québec’s LogisVert program. Our experts at AirGreen assisted the family with every administrative step, from quote to final approval.
Mistakes to avoid in a humid climate
-
Ignoring humidity as a comfort factor: Excessive indoor moisture can lead to mold, discomfort, and material damage.
-
Choosing an undersized unit: A unit that’s too small will run constantly without ever reaching the desired temperature.
-
Neglecting maintenance: Regular HVAC maintenance is essential to preserve performance and indoor air quality.
Why trust AirGreen
At AirGreen, we take pride in offering custom HVAC solutions, tailored to each home. Backed by our field experience across Montreal, Laval, Longueuil, the North Shore, and the South Shore, we’ve seen it all—and more importantly, we know exactly how to handle each situation effectively. Our approach is human, technical, and transparent.
Our teams always take the time to explain the steps, walk through the options, and optimize every project according to the occupants’ real needs, budget, and lifestyle.
Conclusion: clean air, transformed living
Thanks to this installation, the Saint-Lambert family can now enjoy cool, dry air day and night, no matter the weather. Their quality of life has improved, their thermal comfort is under control, and most importantly, they’ve finally rediscovered the joy of living in a home free of humidity.
At AirGreen, we believe comfort should never be a luxury.
We’ll continue supporting families and businesses across the South Shore, Montreal, the North Shore, Laval, and Longueuil with HVAC solutions that are reliable, durable, and intelligent.