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Comment un climatiseur mural réversible peut-il réduire de moitié vos coûts de chauffage à Laval (étude détaillée AirGreen)
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How a Wall-Mounted Reversible Air Conditioner Can Cut Your Heating Costs in Half in Laval (Detailed AirGreen Study)

A strategic choice for Laval’s harsh winters

In Laval’s climate, where winters are long and heating bills can quickly skyrocket, more and more homeowners are looking for sustainable and cost-effective alternatives. At AirGreen, we recently completed a reversible wall-mounted air conditioner installation that perfectly demonstrates how this technology can significantly reduce a typical Laval household’s energy costs — by up to 50% savings on annual heating.

This detailed case study is based on a real-life job handled by our certified technicians in a 1,500 sq. ft. bungalow located in the Chomedey neighborhood. The client’s goal: to replace an old electric heating system with a more efficient, energy-saving, and grant-eligible solution.

Technical details of the system installed by AirGreen in Laval

For this installation, we recommended a Gree reversible wall-mounted air conditioner, model Lomo Plus 18,000 BTU, known for its reliability, strong heating performance at low outdoor temperatures, and low energy consumption.

Key features of the installed system:

  • Brand: Gree

  • Model: Lomo Plus Inverter

  • Capacity: 18,000 BTU

  • Energy efficiency: SEER 21 / HSPF 10.5

  • Refrigerant: R-32 (low environmental impact)

  • Noise level: ultra-quiet (as low as 28 dB)

  • Eligible grant: $1,704 via Hydro-Québec’s LogisVert program

This model was chosen not only for its ability to efficiently heat down to -25°C, but also for its Inverter technology that automatically adjusts output based on real-time needs, reducing stop/start cycles and, in turn, electricity consumption.

A strategic replacement: from old baseboard heaters to a smart wall unit

Before our intervention, the client used wall-mounted baseboard heaters in each room. The annual heating cost exceeded $2,600, despite decent insulation throughout the home.

Our team carried out:

  • The safe removal of the old baseboard units.

  • The installation of a main wall unit in the open-concept area (living/dining room).

  • Optimal positioning of the outdoor unit on a wall-mounted bracket clear of snow buildup.

  • A custom configuration to maximize warm air distribution.

Performance measurements after installation: real-world savings

We followed up with the client over the following months to monitor the system’s real-world performance. Results:

  • A 51% reduction in heating costs compared to the previous winter.

  • Significantly more even thermal comfort throughout the home.

  • Elimination of cold spots, especially in the outer corners of the living room.

  • Reduction in excessive humidity during winter thanks to smart dehumidification mode.

Why choose a reversible wall-mounted air conditioner in Laval?

Here are some clear benefits for residents in Laval and nearby areas:

  • Dual functionality: heating in winter, air conditioning in summer.

  • Quick installation: less than a day’s work.

  • Minimal maintenance: just clean the filters and get an annual check-up.

  • Eligible for grants: immediate savings on purchase and installation.

  • Built for Québec’s climate: models like the Gree Lomo or Fujitsu KZAS are designed to perform below -20°C.

AirGreen’s practical tips for maximizing your heating savings

  1. Close interior doors to concentrate heat in main living areas.

  2. Use a programmable thermostat to adapt temperature to your schedule.

  3. Have the unit serviced yearly by certified professionals.

  4. Seal doors and windows properly to block air leaks.

  5. Position the wall unit strategically so airflow reaches far corners.

Our expertise: custom wall unit installations in Laval and beyond

For years now, we’ve been performing tailored HVAC installations across Laval, in primary residences, rental buildings, and commercial properties. Every project is different. We adapt our recommendations based on:

  • The building’s architectural layout.

  • The client’s budget and available grants.

  • The total area to be heated/cooled.

  • The residents’ lifestyle habits.

Recent examples in Laval:

  • A triplex in Saint-Vincent-de-Paul equipped with three 12,000 BTU wall units.

  • A renovated century-old home in Laval-Ouest using a Fujitsu KZAH unit.

  • A modern condo in Duvernay fitted with a Bosch Climate 5000 model.

Available grants for Laval residents

Installing reversible wall-mounted heat pumps opens the door to major financial incentives, such as:

  • Hydro-Québec’s LogisVert program: up to $2,500 depending on capacity.

  • Chauffez Vert program: if replacing an oil or propane system.

  • Federal grant programs: for eligible single-family homes.

Make the smart choice: contact AirGreen

If you live in Laval, or anywhere on the North Shore, and you’re looking to:

  • Cut down your heating costs,

  • Replace an outdated electric or oil system,

  • Take advantage of available subsidies,

  • Or simply improve your indoor comfort,

Then a reversible wall-mounted air conditioner installed by AirGreen is the perfect solution. Our certified technicians are here to guide you, offer tailored advice, and deliver a fast, clean, code-compliant installation you can rely on.

Conclusion: a profitable, sustainable, and local solution

Thanks to our field experience, in-depth knowledge of the top-performing products on the market, and understanding of Laval’s climate realities, we’re confident that reversible wall-mounted air conditioners offer a cost-effective, eco-friendly, and highly efficient solution for many Québec households. At AirGreen, we are committed to delivering long-lasting installations and exceptional customer satisfaction.


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