ForestAir E24 R454B (115V) Wall-Mounted Heat Pump | 12,000 BTU

In stock
SKU: FA-H12-A24TL-O-454
Provincial Subsidy (LogisVert): 1200 $ (Updated: November 26, 2025)
Model Number (Interior): FA-H12-A24TL-I-454
Model Number (External): FA-H12-A24TL-O-454
AHRI: 217512356
ENERGY STAR®: Yes
ENERGY STAR® (Cold Climate): Yes / Yes
# ENERGY STAR ID: 4529618
Heating Capacity: -25 °C
Cooling Capacity: 12,000 BTU
Gas (Freon): R-454B
WiFi: Included

SEER2 (Seasonal Air Conditioning Efficiency)

1 23.0 30

HSPF2 (Seasonal heating efficiency)

1 10.0 15

EER2 (Instantaneous efficiency in air conditioning)

1 13.0 20

COP at -8 °C (Heating energy efficiency)

1 2.1 3
Nominal Power: 12,000 BTU
Power at -8°C: 10000 BTU
Power at -15°C: 8900 BTU
Interior Dimensions (L x D x H): 36.25 x 12 x 7.63 in
Vertical flap control (Air direction): Auto
Horizontal flap control (Air direction): Auto
Sound Pressure Level (Indoor): 30 / 46 dB(A)

CFM (Airflow)

1 500 700
External Dimensions (L x W x H): 31.88 x 12 x 21.63 in
Piping: 1/4 - 3/8 po
Sound Pressure Level (Exterior): 52.0 dB(A)
Voltage: 115 V
MCA (Minimum Circuit Ampacity): 16 A
MOP (Maximum Overcurrent Protection): 25 A
Warranty (Compressor - Parts - Labor): 10-10-0 years
Additional Warranty: Possible

A 12,000 BTU wall-mounted heat pump well-suited to the realities of Montreal, Laval, Longueuil, the North Shore, and the South Shore

In the category of 12,000 BTU wall-mounted heat pumps, the ForestAir E24 R454B (115V) stands out for concrete reasons: a sought-after 115V power supply in many replacement projects, heating advertised down to -25 °C, Wi-Fi included, ENERGY STAR® certification, and a design oriented towards simpler HVAC installation and HVAC maintenance.

At AirGreen, we always analyze a device beyond its marketing sheet. A good wall-mounted heat pump is not just an assembly of numbers. What truly matters is its behavior in a condo in Montreal, a duplex in Laval, a townhouse in Longueuil, or a residence on the North Shore or South Shore, with its constraints of electricity, noise, clearance, sun exposure, snow, and airflow.

The ForestAir E24 R454B (115V) | 12,000 BTU is particularly suitable for owners who want to efficiently cool a main area while benefiting from serious auxiliary heating for a large part of the Quebec winter. It's not a model to be automatically installed everywhere. It's a model to be properly sized, cleanly installed, and intelligently maintained.

The features that truly matter for this model

Here are the most useful points to remember for this ForestAir heat pump:

  • Nominal cooling capacity: 12,000 BTU
  • Heating capacity down to -25 °C
  • Refrigerant: R-454B
  • Power supply: 115V
  • Wi-Fi included with remote control
  • ENERGY STAR®: Yes
  • ENERGY STAR® Cold Climate: Yes
  • Power at -8 °C: 10,000 BTU
  • Power at -15 °C: 8,900 BTU
  • Automatic vertical and horizontal vanes
  • Indoor sound level: 30 to 46 dB(A)
  • Outdoor sound level: 52 dB(A)
  • Indoor unit dimensions: 36.25 x 12 x 7.63 inches
  • Outdoor unit dimensions: 31.88 x 12 x 21.63 inches
  • Piping: 1/4 - 3/8 inch
  • MCA: 16A
  • MOP: 25A
  • Standard warranty: 10 years compressor, 10 years parts, 0 year labor
  • Additional warranty: possible
  • Provincial LogisVert grant displayed: $1200, subject to eligibility

The official brochure for the E24 series adds several useful details: rapid cooling advertised in 30 seconds, long-range air distribution, 4-way airflow vanes, cooling operation up to 55 °C ambient temperature, voice control compatible with Google Home and Amazon Alexa via USB Wi-Fi connector, as well as an optional wall thermostat. It also indicates, for the 12,000 BTU version, efficiency values of approximately 23.0 SEER2, 13.0 EER2, 8.6 HSPF2, and a COP of 3.81.

The 115V format: a real advantage, but one to understand thoroughly

The word 115V immediately grabs attention, especially in replacement projects in Montreal, Laval, and Longueuil, where many owners hope to avoid heavier electrical work. This is a possible advantage, but one must be precise.

A 115V heat pump does not mean simple connection to an existing outlet. This model requires a compliant installation, with the right protections, circuit verification, and validation of electrical needs. With an MCA of 16A and an MOP of 25A, the panel, wiring path, and overall compliance must be checked before confirming the project.

In many residences on the North Shore and South Shore, this format can simplify a replacement where electrical space is limited or when one wants to cool a specific area without overhauling the entire infrastructure. However, we always explain to our clients that one should not choose a machine solely because it is 115V. The right choice is still the one that meets the actual thermal load of the room.

Spaces where this heat pump delivers the best results

The ForestAir E24 12,000 BTU is often relevant for:

  • a condo with an open-plan living-kitchen area;
  • a well-insulated 3 1/2 or 4 1/2;
  • a large master bedroom with a study nook;
  • a moderately sized ground floor;
  • a main living area in a duplex or triplex.

Where this model performs well is in spaces where one wants to treat a central zone rather than the entire house room by room. Thanks to its automatic vertical and horizontal vanes and high airflow, the unit can distribute air better than an entry-level small wall unit.

However, we do not recommend assuming that a 12,000 BTU will uniformly cover an entire house with several closed doors, long corridors, or very high ceilings. In this type of project, we often redirect the client to a different capacity or a multi-zone configuration.

What we often observe in the field

In a common scenario in Laval, an owner wants to replace an old noisy wall unit installed in a living room with many windows. Their real need is not to heat the entire house, but to stabilize the room where the family spends the most time. For this type of use, the ForestAir E24 R454B (115V) makes sense: it offers good airflow, a reasonable sound level at idle, convenient remote control, and useful heating during cold mid-season and winter days.

In Longueuil, we often see another case: a duplex where the client wants to cool the main floor without oversizing the unit. An overly powerful unit starts, quickly cuts off, then restarts. This operation reduces comfort and can hinder dehumidification in summer. A well-chosen 12,000 BTU often yields a better overall result than a larger unit selected "for safety."

In Montreal, especially in co-ownerships, clients particularly appreciate the Wi-Fi and the indoor sound level, which can drop to around 30 dB(A) depending on the operating mode. Perceived comfort, especially at night or early morning, doesn't only depend on capacity; it also depends on operational stability and installation quality.

The most common feedback for this type of model is simple: useful remote control before returning home, quick comfort increase, contained noise in gentle mode, and better control of humid summer periods when the unit is properly sized.

HVAC installation and maintenance determine the true performance of the ForestAir E24

A wall-mounted heat pump can have a convincing technical sheet and disappoint once installed if the installation is mediocre. At AirGreen, this is often where the difference lies between a merely acceptable unit and a truly durable installation.

Essential checks before installation

Before confirming a wall-mounted heat pump installation in Montreal, Laval, Longueuil, on the North Shore or South Shore, we pay particular attention to several points:

1. Indoor unit location

The goal is to direct air where occupants actually live. A poorly placed wall unit sometimes blows directly onto the sofa, leaves a hot spot in the kitchen, or loses some of its effectiveness in a hallway. The ForestAir E24 has a width of approximately 36.25 in and a depth of 12 in; therefore, clearance, airflow distribution, and visual integration must be considered.

2. Outdoor unit location

With an outdoor sound pressure of 52 dB(A), positioning remains important. On the South Shore and in Montérégie, we pay particular attention to snow accumulation, access for service, and distance from immediate neighbors. In some projects, a wall bracket is pertinent; in others, a raised ground base is preferable.

3. Pipe and drain routing

The E24 series documentation mentions a pre-charge for 7.5 m (25 ft), a maximum pipe length of 15 m (49 ft), and a maximum elevation of 10 m (33 ft) for the 12,000 BTU version. These figures seem technical, but they have a direct impact on project feasibility, especially in condos or when the condenser needs to be installed remotely.

4. Electrical supply

The 115V is interesting, but we always check the panel, available load, and circuit compliance. This is a step that many still underestimate.

5. Building regulations and constraints

In co-ownerships, plexes, or certain areas of Montreal and Longueuil, exterior appearance, conduit passages, supports, and penetrations may be regulated. A well-thought-out installation avoids costly corrections later.

The most common mistakes we see

Here are the most common mistakes when a client chooses a 12,000 BTU wall-mounted heat pump without technical support:

  1. Choosing capacity solely based on area
    Insulation, orientation, ceiling height, large windows, and sunlight levels completely change the actual need.
  2. Thinking that 115V means simple installation without verification
    This shortcut causes electrical surprises.
  3. Underestimating the location of the outdoor condenser
    Wind, snow, ice, and service access greatly influence longevity.
  4. Ignoring the labor warranty
    The sheet shows 10-10-0. This deserves a clear explanation. The compressor and parts are covered for 10 years, but standard labor is not included; additional protection can be added. This is an important point in calculating the real cost of ownership.
  5. Postponing HVAC maintenance
    A dirty filter, a partially clogged drain, or an obstructed condenser quickly degrade comfort.

Recommended HVAC maintenance for this model

A well-maintained ForestAir E24 heat pump remains more stable, quieter, and more cost-effective in the long run. For this unit, we recommend:

  • regular cleaning of indoor filters;
  • an annual inspection of connections, drain, pressures, and overall performance;
  • clearing the outdoor unit after snowfall;
  • checking the outdoor support and vibration;
  • checking operation in heating and cooling modes at seasonal changes.

The R-454B also requires service performed by competent technicians equipped for this type of refrigerant. For us, this is not an administrative detail; it's a matter of compliance, safety, and quality of intervention.

Why AirGreen provides real value for this type of installation

The ForestAir E24 R454B (115V) | 12,000 BTU can be a very good solution, but only if the project is well managed. At AirGreen, we provide this value on several levels:

  • we evaluate whether a 12,000 BTU is actually the right capacity;
  • we validate the electrical constraints of the 115V before work begins;
  • we prepare a clear offer before the start of the project;
  • we install with experienced refrigeration technicians;
  • we provide after-sales service follow-up;
  • we work with 5 M$ liability insurance;
  • we support our clients from Montreal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie with an approach adapted to the building, not just the product.

This is also what changes the customer experience. A great technical sheet doesn't fix a bad location, a poorly designed drain slope, or a poorly chosen outdoor support. A good team does.

Our verdict on the ForestAir E24 R454B (115V) | 12,000 BTU

This ForestAir wall-mounted heat pump presents a consistent profile for the Quebec residential market: 12,000 BTU, 115V, heating down to -25 °C, Wi-Fi included, R-454B, quiet operation at low speed, and a format that can be very suitable for a condo, apartment, or main area of a house.

It stands out mainly for its balance. It is not a device to choose blindly for every situation. However, in the right space, with a rigorous HVAC installation and consistent HVAC maintenance, it can deliver very satisfactory comfort in both summer and winter.

To find out if the ForestAir E24 R454B (115V) | 12,000 BTU Wall-Mounted Heat Pump is suitable for your property in Montreal, Laval, Longueuil, on the North Shore or South Shore, contact AirGreen at 514-316-2973 or write to sales@airgreen.ca. We will prepare a clear quote, verify eligibility for subsidies, and recommend the most logical configuration for your space.