Improving the thermal comfort of a residential or commercial space in Laval can quickly become a nightmare if the HVAC system isn’t installed by experienced professionals. At AirGreen, we’ve often encountered floor-ceiling unit installation failures, caused by avoidable but serious mistakes. Thanks to our expertise, we’ve stepped in, resolved the issues, and delivered optimal performance to the affected clients. Here are the three most critical mistakes we see most often, and our recommendations to avoid them.
Poor assessment of the unit’s capacity: uneven comfort and high energy costs
One of the most common mistakes during the installation of a floor-ceiling unit in Laval is choosing a model with the wrong capacity. Too often, inexperienced installers suggest a heat pump that’s either oversized or undersized, without taking the specifics of the building into account.
The consequences:
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An undersized unit runs constantly at full power, which reduces its lifespan and leads to high energy bills.
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An oversized unit causes short cycling, ineffective dehumidification, and uncomfortable temperature fluctuations.
Our approach:
At AirGreen, we perform a complete thermal analysis of the building in Laval, including insulation, exact square footage, window orientation, and ceiling height. This evaluation allows us to recommend the most suitable floor-ceiling heat pump (for example, an 18,000 BTU Toshiba Carrier or Mitsubishi unit) to ensure maximum energy efficiency and consistent comfort.
Poor unit positioning: inefficient airflow and discomfort
Unlike a wall-mounted unit, a floor-ceiling unit can be installed near the floor or ceiling, depending on the layout of the room. If positioned poorly, it may fail to properly distribute warm or cool air.
Common problems:
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Installed too low in a large room = warm air stays at the ceiling, resulting in reduced comfort.
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Installed behind furniture = blocked airflow, increased noise, and inefficiency.
The AirGreen example in Laval:
During a recent job in a commercial building in Laval-des-Rapides, a 24,000 BTU Daikin unit had been installed directly under a low beam. The result: airflow was blocked, causing insufficient heating in half of the room. Our team relocated the unit to the opposite wall, 2 meters above the ground, and added an adjustable deflector to ensure optimal air circulation.
Poor electrical or drainage connection: leaks, breakdowns, safety risks
Installing an HVAC floor-ceiling unit requires careful connection to the electrical supply and drainage system. Yet some installers cut corners or fail to anticipate condensation management.
Risks involved:
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Water leaks caused by an improperly sized or poorly angled drain.
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Frequent unit shutdowns due to incorrectly calibrated electrical connections.
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Electrocution or fire hazards, especially if wiring isn’t properly insulated.
The AirGreen solution:
Our certified technicians always ensure that every floor-ceiling unit is connected according to CSA standards. On a recent job in Fabreville (Laval), a client contacted us urgently after noticing water infiltration in a drop ceiling. We immediately identified that the drain pipe had no slope. Within 48 hours, our team replaced the pipe, added a secure condensate pump, and inspected the entire installation.
Why trust AirGreen with your floor-ceiling unit installation in Laval?
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Local expertise: We’re intimately familiar with the thermal and architectural realities of Laval neighborhoods like Chomedey, Sainte-Rose, Vimont, and Duvernay.
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Certified and experienced installers: All of our technicians are trained to handle complex HVAC equipment, whether wall-mounted, ducted, or floor-ceiling.
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Personalized follow-up: We offer regular HVAC maintenance after every installation to ensure your system’s long-term performance.
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Tailored recommendations: We only recommend proven brands such as Mitsubishi Electric, Gree, Fujitsu, or Tosot, and we account for available subsidies (e.g., the Hydro-Québec LogisVert program).
Available subsidies in Laval for a floor-ceiling unit
Many of the floor-ceiling heat pump models installed by AirGreen are eligible for Hydro-Québec’s LogisVert program subsidies, which can go up to $2,400, depending on the BTU size, energy efficiency rating (SEER/HSPF), and building configuration. We assist every client with preparing and submitting their subsidy application, at no additional cost.
Practical tips for your HVAC project in Laval
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Never choose a unit without a professional thermal evaluation.
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Make sure your installer understands the specific features of floor-ceiling units.
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Choose a local company like AirGreen, that understands Laval’s climate and standards.
Our past installations in Laval: real, proven expertise
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Installation of an 18,000 BTU Carrier floor-ceiling heat pump in a condo in Sainte-Rose.
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Replacement of an existing unit with a Gree floor-ceiling model in a medical clinic in Chomedey.
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Installation of a dual-zone system with one wall-mounted and one floor-ceiling Toshiba unit in a home in Duvernay.
Each project reflects our commitment to excellence, precision, and customer satisfaction.
Conclusion
Avoiding critical mistakes during the installation of a floor-ceiling unit in Laval requires a blend of technical know-how, in-depth analysis, and on-site experience. At AirGreen, we make every installation a benchmark in performance, energy efficiency, and reliability. Don’t entrust your comfort to amateurs – choose a team that knows HVAC inside and out.