ForestAir E24 R454B Wall-Mounted Heat Pump | 24,000 BTU - Greater Montreal
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 solid 24,000 BTU wall-mounted heat pump for Montreal winters and humid South Shore summers
When a homeowner looks for a 24,000 BTU wall-mounted heat pump for an open-concept area, a large ground floor, or a spacious condo, the real challenge isn't just the advertised capacity. It needs to be a machine capable of keeping up with heating when the temperature drops, maintaining good comfort in cooling during humidity peaks, and remaining simple to maintain over the years. The ForestAir E24 R454B precisely meets this type of need.
At AirGreen, we install HVAC systems everywhere in Montreal, Laval, Longueuil, on the North Shore, and on the South Shore. What we see in the field is clear: the 24,000 BTU category often attracts two very different profiles. The first truly needs this capacity for a large, difficult-to-regulate space. The second wants to "go bigger to be safe." However, in wall-mounted heat pump installation, an oversized or poorly placed unit does not automatically yield a better result. The ForestAir E24 becomes interesting when it is properly sized, positioned, and commissioned.
This model combines several useful features for Greater Montreal: heating down to -25 °C, R-454B refrigerant, Wi-Fi included, 4-way automatic louvers, ENERGY STAR® certification, and a LogisVert grant listed at $2520 on our product sheet. Add to that a 10-year compressor / 10-year parts / 0-year labor warranty, with possible extended warranty, and you get a machine that deserves serious analysis, not just a glance at the energy label.
What to remember from the technical specifications
The ForestAir E24 R454B sold by AirGreen in Greater Montreal corresponds to the model pair FA-H24-D24TL-I-454 (indoor) and FA-H24-D24TL-O-454 (outdoor), with AHRI number 217512360. Practically speaking, here is the data that really matters to a buyer:
- Nominal capacity: 24,000 BTU
- Cooling capacity: 24,000 BTU on our product sheet, with a certified capacity of 23,000 BTU/h in the technical documentation
- Nominal heating capacity: 25,000 BTU/h
- Power at -8 °C: 21,000 BTU
- Power at -15 °C: 18,600 BTU
- Low-temperature heating: down to -25 °C
- Refrigerant: R-454B
- 24,000 BTU model efficiency: SEER2 23.0, EER2 12.0, HSPF2 8.2, COP2 3.41
- ENERGY STAR®: yes
- ENERGY STAR® Cold Climate: yes, according to the AirGreen product sheet
- Wi-Fi: included
- Voltage: 220 V
- MCA: 17 A
- MOP: 25 A
- Piping: 1/4 in – 5/8 in
- Indoor sound level: from 34 to 50 dB(A) depending on speed
- Outdoor sound level: 54 dB(A)
- Indoor unit dimensions: 43.25 x 13 x 8.75 in
- Outdoor unit dimensions: 38.5 x 16.63 x 31.63 in
One important point needs clarification: the E24 series boasts a SEER2 up to 24.0 for certain capacities, but the 24,000 BTU FA-H24-D24TL version is rated at 23.0 SEER2 in the technical documentation. At AirGreen, we prefer to present the data specific to the installed model, because that's what matters in a real project in Montreal, Laval, or Longueuil.
Who is this ForestAir 24,000 BTU wall-mounted heat pump really for?
This ForestAir E24 R454B wall-mounted heat pump is particularly suitable for spaces where air can circulate freely. In practice, we often recommend it for:
- a large open-concept living room with kitchen and dining room;
- the ground floor of a bungalow or cottage;
- a large condo with few closed rooms;
- a light commercial premises or a moderately sized office;
- a home where the heat pump is intended to cover a significant portion of electric heating needs.
With an airflow reaching approximately 1,250 m³/h (735 CFM) on the 24,000 BTU model, this machine has the necessary reserve to push air further than many entry-level units. In several HVAC projects in Montreal and Laval, we have found that the 24,000 BTU size works very well when the main room becomes the true center of air distribution. The vertical and horizontal automatic louvers help distribute the airflow better, which significantly changes the perceived comfort in elongated spaces. On the South Shore, particularly in houses with many backyard-facing windows, this capacity reserve also makes a difference in summer.
Conversely, if the house has several closed bedrooms, split levels, or a long corridor that cuts off air circulation, a single 24,000 BTU wall-mounted heat pump is not always the right answer. We still see clients who hope to air condition the entire house with a single wall-mounted unit installed in the living room. Technically, this can mitigate some of the load, but the result will not be uniform. In these cases, a multi-zone solution or another HVAC strategy often provides better overall performance.
Winter heating: what -25 °C really means
The argument of heating down to -25 °C attracts a lot of attention in Quebec. However, it must be interpreted correctly. This means that the machine is designed to operate at very low ambient temperatures, not that it will provide exactly the same heating capacity as in autumn. This is precisely where the numbers at -8 °C and -15 °C become useful.
The AirGreen product sheet indicates 21,000 BTU at -8 °C and 18,600 BTU at -15 °C. For a homeowner in Montreal or the North Shore, these figures are worth more than a marketing slogan. They show that the ForestAir E24 retains serious capacity when winter becomes demanding. In a proper building envelope, it can cover a large portion of the heating needs. In an older, less airtight, or very wind-exposed house, it significantly reduces the load on electric baseboards, without necessarily eliminating them on the coldest days.
It is often in this type of situation that our role at AirGreen becomes important. We do not sell this model simply because it displays 24,000 BTU. We validate the area, insulation, ceiling height, solar orientation, presence of an open staircase, and occupancy habits. From several service calls received after installations done elsewhere, the main problem was not the quality of the machine, but the sizing. A well-chosen heat pump always starts with a serious calculation.
In air conditioning: humidity, rapid comfort, and summer operation
Summer in Greater Montreal is not just hot; it is often heavy and humid. This is why a good wall-mounted heat pump must offer more than just a drop in temperature. The ForestAir E24 R454B highlights rapid cooling in 30 seconds, long-range air distribution, and possible operation in outdoor ambient temperatures up to 55 °C. This last point is useful when the outdoor unit is subject to a high solar load on a wall or near a very hot patio.
The series documentation also indicates a dehumidification capacity of 2.6 L/h for the 24,000 BTU version. In the field, this parameter is often underestimated. However, in a condo in Longueuil or in a house on the South Shore, removing humidity from the air directly changes the feeling of comfort. A room at 24 °C with controlled humidity feels much more pleasant than a room at the same temperature but poorly dehumidified.
Regarding noise, the model displays an indoor level varying from approximately 34 to 50 dB(A) depending on the speed, and 54 dB(A) outdoors. In an urban environment like Montreal, this matters. We pay particular attention to the positioning of the condenser to limit vibration transmission to balconies, fences, and light walls. On a well-executed site, acoustic comfort depends as much on the installation as on the machine itself.
Wi-Fi, voice control, and simplified maintenance
The included Wi-Fi is far from a gimmick for many homeowners. With the ForestAir E24, remote control is done via a USB Wi-Fi connector, compatible with Google Home and Amazon Alexa. This allows adjusting the temperature before returning home, creating simple schedules, or reducing consumption during absences. In a secondary residence or rental property occupied part of the week, this aspect becomes very practical.
The E24 series also provides a multifunction remote control, and an optional thermostat can be considered depending on the use case. For some customers, especially in multi-occupant housing, this control flexibility greatly simplifies daily management.
The E24 series also emphasizes easy installation and maintenance. For us, this has a concrete advantage: when annual maintenance is simpler, the maintenance cost remains reasonable, and the technician can intervene more efficiently. Filters must be cleaned regularly, coils kept clean, the drain checked, and the outdoor unit cleared in all seasons. A well-maintained wall-mounted heat pump maintains its efficiency, protects its compressor, and remains more stable in both heating and cooling.
Another point we often explain to clients: the advertised warranty is 10-10-0. In other words, 10 years on the compressor, 10 years on parts, but no labor included as standard. This is precisely the kind of detail that is better understood before purchase. The possible extended warranty can be relevant for some homeowners, especially when they want more complete peace of mind.
Our AirGreen method for getting the most out of the ForestAir E24 R454B
The quality of a wall-mounted heat pump installation lies in the details. For this model, we follow a strict method, because the manufacturer's advertised performance only materializes if the execution is rigorous.
What we check before installation
Even before fixing the wall unit, we validate several elements:
-
The building's actual thermal load
Surface area, insulation, air infiltration, ceiling height, window orientation, occupancy, and internal appliances. -
Air circulation
A 24,000 BTU wall-mounted heat pump works best in an open space. We evaluate doors, corridors, staircases, and stagnation zones. -
Electrical supply
This model requires 220 V, with a minimum amperage of 17 A and a maximum protection of 25 A. An inadequate circuit can compromise reliability. -
Pipe routing
The documentation specifies a 1/4 in liquid line, a 5/8 in suction line, a pre-charge for 7.5 m, a maximum length of 20 m, and a maximum elevation of 15 m. These limits directly influence the choice of wall and outdoor location. -
Water and noise management
Drain slope, freeze protection, anti-vibration supports, and clearances around the outdoor unit are never taken lightly.
The most common mistakes we see with this type of product
In our HVAC work in Montreal, Laval, Longueuil, on the North Shore, and on the South Shore, certain errors regularly recur:
- choosing 24,000 BTU simply because the house seems large, without serious calculation;
- installing the wall unit too close to the ceiling or in a corner that blocks airflow;
- underestimating the importance of proper drainage of condensate;
- neglecting vacuuming, leak testing, and the quality of refrigerant connections;
- placing the outdoor unit in a location that concentrates noise or accumulates snow;
- forgetting that real performance also depends on the building envelope.
At AirGreen, we often correct the consequences of these choices. A respectable appliance can yield an average result if it was installed too quickly. Conversely, a well-installed system, properly calibrated and explained to the client, generally remains stable, comfortable, and more economical to operate.
Why this model can be a good choice in Greater Montreal
The ForestAir E24 R454B holds an interesting place in the market. It targets homeowners who want a serious wall-mounted heat pump, adapted to the Quebec climate, without automatically moving to a much more expensive product. Its strengths are clear:
- good winter capacity down to -25 °C;
- competitive energy efficiency for its category;
- Wi-Fi included and voice control;
- R-454B refrigerant, more current;
- 4-way louvers for better airflow;
- simplified maintenance;
- eligibility for an advertised subsidy on the product sheet.
For a homeowner in Montreal who wants to reduce their electric heating bill, for a family in Laval who wants to air condition a large common area, or for a client in Longueuil who is looking for a reliable appliance with good winter performance, this model is worth considering. It does not replace a building analysis, but it is one of the options that hold up when looking for a balanced HVAC solution.
Why choose AirGreen for the installation of this ForestAir
Installing a ForestAir wall-mounted heat pump is not about drilling a wall and connecting two units. What we bring at AirGreen is clean, clear, and durable execution:
- clear quote before work;
- experienced refrigeration technicians for installation and after-sales service;
- $5M civil liability insurance coverage;
- company holding RBQ 5645-9605-01;
- active service in Montreal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie;
- support for product selection, HVAC maintenance, and post-installation follow-up.
We also insist on a simple point: we don't push this machine everywhere. If your configuration requires a different capacity, another type of air distribution, or a multi-zone system, we will tell you. This is often what prevents long-term disappointments.
AirGreen verdict
The ForestAir E24 R454B Wall-Mounted Heat Pump | 24,000 BTU is a compelling option for properties in Greater Montreal that need true distribution capacity in an open space, reliable heating down to -25 °C, effective air conditioning, and modern control with Wi-Fi included. Its technical profile is consistent, its dimensions remain reasonable for a 24,000 BTU, and its compatibility with the climate of Montreal, Laval, Longueuil, the North Shore, and the South Shore makes it a logical choice for several residential projects.
Its value becomes even clearer when the installation is well-planned: good location, compliant electrical circuit, well-executed conduits, careful commissioning, and regular maintenance. This is exactly where we make a difference at AirGreen.
For a quote, capacity validation, a question about the LogisVert grant, or an HVAC installation of the ForestAir E24 R454B in Montreal, Laval, Longueuil, on the North Shore, or on the South Shore, contact AirGreen now. We will honestly tell you if this 24,000 BTU is the right choice for your property and we will prepare a clear proposal, adapted to your building.