Installation of a ForestAir E24 wall-mounted heat pump in L’Île-Cadieux: a high-performance solution adapted to Quebec’s climate
AirGreen installs a ForestAir E24 wall-mounted heat pump in L’Île-Cadieux. An efficient HVAC solution providing effective heating and cooling for homes in Greater Montreal.
Take a tour of the installation
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.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
A Residential Installation Designed to Maximize Comfort and Energy Efficiency in L’Île-Cadieux
At AirGreen, we installed a ForestAir E24 wall-mounted heat pump in L’Île-Cadieux, a municipality located near Montréal where homeowners are increasingly seeking efficient heating and cooling solutions capable of meeting the significant variations in Quebec’s climate.
This installation presented an interesting challenge: providing a reliable system for year-round comfort while respecting the building’s physical constraints. Like many residences in the metropolitan area, the property had limited outdoor space, requiring careful planning to preserve the façade’s aesthetics and ensure optimal equipment operation.
The chosen solution was a ForestAir E24 wall-mounted heat pump, a model designed for modern residential needs. This unit provides air conditioning during the hot summer months while also delivering significant heating during the cold seasons.
For homeowners in L’Île-Cadieux, Montréal, Laval, Longueuil, the North Shore, and the South Shore, this type of installation represents an interesting alternative to traditional electric heating systems, since a heat pump transfers heat rather than simply producing it through electrical resistance.
Technical Features of the Installed ForestAir E24 Wall-Mounted Heat Pump
The ForestAir E24 belongs to a new generation of wall-mounted heat pumps designed to offer improved energy efficiency and performance suited to Quebec’s cold temperatures.
A Capacity Adapted to Residential Needs
The E24 model offers an approximate capacity of 24,000 BTU/h, making it a suitable choice for many homes, condominiums, and residences requiring extensive coverage of a living area.
When installing a 24,000 BTU wall-mounted heat pump, several factors must be analyzed before confirming the final choice:
- total area to heat and cool;
- building insulation;
- room orientation;
- ceiling height;
- number of windows;
- natural air circulation;
- occupants’ habits.
At AirGreen, we never choose capacity based solely on square footage. An oversized unit can lead to short cycles and reduce comfort, while an undersized unit may run constantly during severe cold.
Technology suited to cold temperatures
The ForestAir E24 uses inverter technology, allowing the compressor to adjust its output according to actual demand. Unlike older systems that operate only in on/off mode, an inverter heat pump gradually modulates its capacity.
The benefits are numerous:
- more stable indoor temperature;
- reduced electricity consumption;
- quieter operation;
- better efficiency during transition periods;
- fewer abrupt compressor starts.
This type of technology is particularly beneficial in the Montreal area, where temperatures can quickly shift from mild conditions to periods of intense cold.
A precise outdoor installation by AirGreen
The installation visible at this residence on L’Île-Cadieux demonstrates the importance of technical preparation even before securing the outdoor unit.
The ForestAir unit was installed on a raised metal structure, providing several practical benefits.
Why use a raised base for a wall-mounted heat pump?
In Quebec, outdoor installation must take several factors into account:
- snow accumulation;
- ice formed by water drainage;
- the necessary clearance around the fan;
- future maintenance;
- protection against splashes and debris.
By placing the unit on a suitable support, we improve:
- air circulation around the condenser;
- access for HVAC maintenance;
- the equipment’s mechanical protection;
- the system’s overall lifespan.
For this installation, the proximity of the brick façade also required particular attention to maintain sufficient clearance while preserving a clean appearance.
Professional management of refrigerant line routing
An installation of a wall-mounted heat pump is not simply a matter of mounting an indoor unit and an outdoor unit. The quality of the line routing directly affects the system’s performance.
For this installation in L’Île-Cadieux, the refrigerant lines, electrical wiring, and condensate drainage were grouped inside an outdoor protective cover to achieve a clean, durable result.
This finish offers several advantages:
- protection from the elements;
- reduced risk of mechanical damage;
- more professional appearance;
- better integration with the façade.
At AirGreen, we place particular importance on visible details. An HVAC installation must perform well, but it must also integrate properly with the building.
Common mistakes to avoid when installing a wall-mounted heat pump
A heat pump represents a significant investment. However, certain installation errors can considerably reduce its performance.
Installing a unit without analyzing the outdoor location
The outdoor unit’s location directly affects its performance.
Avoid:
- spaces that are too enclosed;
- locations where snow can block the fan;
- areas where meltwater can freeze beneath the unit;
- installations without maintenance access.
A proper installation always begins with an analysis of the building.
Neglecting condensate drainage
In heating mode, a heat pump produces water during defrost cycles. This water must be able to drain properly.
Poor management can lead to:
- ice buildup;
- fan blockage;
- mechanical stress;
- premature service calls.
Choosing equipment based solely on price
Two heat pumps with the same capacity can offer very different performance.
Important criteria include:
- energy efficiency;
- winter performance;
- parts availability;
- build quality;
- warranty;
- installer expertise.
An installation suited to homeowners in L’Île-Cadieux and the metropolitan area
Homeowners looking for a heat pump installation in Montréal, Laval, Longueuil, the North Shore, or the South Shore generally want three things: greater comfort, lower energy costs, and a reliable system for many years.
The ForestAir E24 installed in L’Île-Cadieux meets these needs precisely through:
- capacity suited to residential homes;
- modern inverter technology;
- performance suited to cold climates;
- professional outdoor installation;
- aesthetic integration with the building.
At AirGreen, every project is handled individually. A residence on the South Shore, a condo in Montréal, or a single-family home in Laval may require completely different approaches.
HVAC maintenance: preserving the performance of your ForestAir heat pump
Even an excellent installation requires regular maintenance.
For a wall-mounted heat pump, we recommend:
Indoor unit maintenance
Cleaning includes, among other things:
- filters;
- heat exchanger;
- fan;
- drain pan;
- drain lines.
Accumulated dust can reduce airflow and increase electricity consumption.
Outdoor unit inspection
Outdoor maintenance makes it possible to check:
- fan condition;
- coil cleanliness;
- defrost operation;
- electrical connections;
- refrigerant system pressure.
Preventive maintenance often makes it possible to identify problems before they become costly.
AirGreen’s expertise in heat pump installations in Quebec
This ForestAir E24 wall-mounted heat pump installation in L’Île-Cadieux illustrates our approach: analyzing the building, choosing suitable equipment, and completing a clean installation down to the smallest details.
A high-performance heat pump depends as much on the quality of the equipment as on the quality of its installation. Poor placement, inadequate drainage, or a rushed installation can reduce the expected benefits.
At AirGreen, we support homeowners in Montréal, Laval, Longueuil, the North Shore, and the South Shore with their heating, ventilation, and air conditioning (HVAC) projects through solutions tailored to Quebec’s realities.
The ForestAir E24 installed in L’Île-Cadieux is a concrete example of a residential installation completed with particular attention to performance, durability, and aesthetic integration.
The big day, step by step
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
What would it look like at your place?
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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
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.
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
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).