FORESTAIR E-23 Heat Pump | 18,000 BTU | Installation in Montreal & Montérégie
SEER2 (Seasonal Air Conditioning Efficiency)
HSPF2 (Seasonal heating efficiency)
EER2 (Instantaneous efficiency in air conditioning)
COP at -8 °C (Heating energy efficiency)
CFM (Airflow)
A wall-mounted heat pump designed for Quebec buildings, not for marketing materials
The FORESTAIR E-23 18,000 BTU wall-mounted heat pump falls into a well-defined category within the Quebec HVAC market: that of reliable, pragmatic systems that are consistent with the realities of residential buildings here. It doesn't seek to impress with certifications or excessive marketing figures, but rather to offer a stable balance between actual performance, acquisition cost, and mechanical simplicity .
At AirGreen , we install the E-23 series in very specific contexts in Montreal , Laval , Longueuil , on the North Shore and in Montérégie , when the building, the insulation and the client's expectations correspond to what this model can do — and especially to what it does not claim to do.
This clear positioning explains why the FORESTAIR E-23 is often chosen by savvy homeowners, property managers, or clients who prioritize long-term stability over the race for subsidies or complex technologies.
A heating capacity adapted to real winters, not idealized scenarios
Heating down to -25°C: what this means in practice
The FORESTAIR E-23 is designed to maintain functional heating capacity down to -25°C , an essential factor for the winters of Montreal , Laval and the North Shore , where periods of sustained cold are not exceptional.
In practice, this means that the heat pump retains significant power when several comparable models begin to rapidly lose efficiency:
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Approximately 15,900 BTU at -8°C
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Approximately 15,000 BTU at -15°C
In well-insulated houses, recent condos or renovated apartments, this performance allows the heat pump to act as the main source of heating , considerably reducing the need for backup systems.
However, we always emphasize one fundamental point: a wall-mounted heat pump, even a high-performance one, will never compensate for poor insulation. That's why our preliminary building analysis is crucial in choosing this model.
A stable rather than aggressive return
The FORESTAIR E-23 is not designed to offer maximum efficiency at all costs. Rather, it aims for thermal stability , with regular operating cycles, which limits:
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Sudden temperature changes
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Premature compressor wear
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Peak electricity consumption
This is an often underestimated advantage, but one that is greatly appreciated in the long term by our clients in Longueuil and the Montérégie region, particularly in permanently occupied residences.
18,000 BTU air conditioning: constant summer comfort
Uniform cooling of living spaces
With a cooling capacity of 18,000 BTU , the FORESTAIR E-23 is perfectly suited for:
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A large open-plan living room
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A full floor of a duplex
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A well-insulated, medium-sized single-family home
The high airflow allows for efficient distribution, avoiding cold spots near the unit and hot spots further away. In several installations completed in Montreal East and Boucherville , clients have noted a significant improvement in overall comfort, even during prolonged heat waves.
Noise management and acoustic comfort
The indoor noise level , varying between 39 and 47 dB(A) depending on the operating mode, remains within an acceptable range for residential use. When installed correctly—on a suitable load-bearing wall and with precise fixing—the perceived noise remains discreet, even in bedrooms or home offices.
Outdoors, at 55 dB(A) , the unit complies with the urban noise regulations of most municipalities in the metropolitan area. At AirGreen, we systematically adapt the location of the outdoor unit to minimize any noise disturbance for occupants and the neighborhood.
Energy efficiency data: understanding the figures without overinterpreting them
The efficiency indicators of the FORESTAIR E-23 demonstrate a performance consistent with its intended purpose :
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SEER2: 120.030
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HSPF2: 18.515
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EER2: 112.520
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COP at -8 °C: 11.753
These values reflect reasonable electricity consumption when the system is properly sized. However, we remind our customers that actual efficiency largely depends on:
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The quality of the HVAC installation
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The length and diameter of the piping
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Building waterproofing
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Usage habits
It is precisely for this reason that we reject rapid or standardized installations without prior analysis.
Technical design: simplicity, accessibility and easy maintenance
Indoor unit: discreet integration
With its compact dimensions (38.2 x 11.69 x 8.69 in), the indoor unit fits easily into spaces where every inch counts. It is frequently installed in:
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Urban condos
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Master bedrooms
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Common areas without the possibility of conduits
Automatic vertical shutter control ensures diffusion adapted to the room configuration, while manual horizontal adjustment allows for precise fine-tuning according to occupant preferences.
Outdoor unit: robustness adapted to the local climate
The outdoor unit, with its well-proportioned dimensions, allows for wall or floor mounting. In areas more prone to snow accumulation, particularly on the North Shore , we recommend raised bases to ensure optimal air circulation during winter.
Vibration management is a central point of our installation method, particularly in lightweight buildings or in dense urban environments.
R-410A refrigerant: a controlled choice, with known limitations
The FORESTAIR E-23 uses R-410A , a refrigerant well-known to refrigeration technicians. This choice offers several immediate advantages:
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Proven technology
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Parts availability
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Simplified HVAC Maintenance
However, we always inform our customers of upcoming regulatory developments so that they can make an informed choice based on their intended use.
HVAC installation by AirGreen: an approach based on field experience
Common installation scenarios
We install the FORESTAIR E-23 primarily in the following cases:
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Replacing an aging wall-mounted heat pump
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Upgrading an inefficient air conditioning system
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Main solution in a ductless dwelling
In Laval , Longueuil and Montérégie , this model is often chosen for its predictability : it does exactly what it was designed to do.
Mistakes we systematically avoid
Our experience has allowed us to identify the most frequent errors related to wall-mounted heat pumps:
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Undersizing or oversizing
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Piping that is too long or poorly insulated
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Inadequate condensate drainage
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Non-compliant power supply (220V, MCA 16A, MOP 25A)
Each AirGreen installation includes a complete validation of these parameters to ensure stable and sustainable performance.
HVAC maintenance and system longevity
Recommended maintenance to preserve performance
To maintain the performance of the FORESTAIR E-23:
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Regular filter cleaning
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Full annual inspection
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Checking drainage, electrical connections and pressures
Our HVAC maintenance plans are designed to extend the life of the system and reduce the risk of unexpected breakdowns.
Warranty and protection options
The standard warranty covers:
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10 years on the compressor
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10-year warranty on parts
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0 years on the workforce
An additional warranty can be added during installation, an option often chosen by our customers who want added peace of mind.
Why AirGreen is the right partner for this model
Having a FORESTAIR E-23 installed by AirGreen means benefiting from:
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With recognized local expertise in HVAC
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Transparent pricing , no surprises
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Qualified and experienced refrigeration technicians
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$5 million in liability insurance
We favour an honest, technical approach tailored to each situation, without unnecessary promises.
Conclusion
The FORESTAIR E-23 18,000 BTU heat pump is a consistent solution for homeowners looking for a reliable, simple wall-mounted system well-suited to Quebec's climate. When properly sized and installed, it provides consistent comfort in both heating and cooling, year after year.
For installation in Montreal, Laval, Longueuil, on the North Shore or South Shore , or to confirm if this model is suitable for your building, contact AirGreen now . Our team will analyze your situation and offer you a clear, tailored, and sustainable HVAC solution.
