• Brochure

HAXXAIR V2D R-454B Wall-Mounted Air Conditioner/Heat Pump | 18,000 BTU

A wall-mounted heat pump designed for the real climate of Greater Montreal (and for bills that remain reasonable)

When a customer contacts us in Montreal , Laval , or Longueuil to upgrade a wall-mounted system, the request is almost never limited to "having cold air." The reality is a need for stable comfort , reliable heating in winter , a unit that adapts to rapid temperature changes, and an installation designed to avoid the recurring problems we see all too often: noise, ineffective defrosting, poorly managed water flow, inconsistent performance, or energy consumption that rises for no apparent reason.

The HAXXAIR V2D R-454B 18,000 BTU (indoor unit HAHZ-18V2D , outdoor unit HVHZ-18V2D ) fits perfectly into this logic: a wall-mounted heat pump designed for our climate, with a clear objective — to provide efficient air conditioning in the summer and solid heating during the colder periods, while maintaining fine temperature control thanks to Inverter technology.

At AirGreen, we particularly recommend it when a customer wants to:

• replace an aging wall-mounted heater that struggles to provide adequate heating,

• stabilizing comfort in an open area (living room/kitchen) without "hot/cold flashes",

• to obtain a well-documented, properly installed, and easy-to-maintain system,

• ensure that the project remains consistent with grant requirements and good HVAC installation practices.

The first thing to remember (and how it changes on a daily basis)

For a homeowner, the technical specifications are only useful if they translate into concrete benefits. Here are the points that come up most often in purchase decisions on the North Shore and the South Shore :

• Cooling capacity: 18,000 BTU
  A highly sought-after size for condos, duplex floors, or open-concept living spaces of standard dimensions. Properly sized, 18,000 BTU can offer an excellent balance between comfort and efficiency.

• Heating designed for winter (down to -25°C)
  In practice, this means the system aims to remain useful for heating well beyond autumn. This is precisely where homeowners see a difference: less reliance on supplemental heating, and greater stability.

• R-454B refrigerant
  New refrigerants are an important topic in HVAC, and R-454B is among the more modern options. For the customer, the key point isn't "the name of the gas," but what it implies: a proper, airtight, and compliant installation, with good commissioning practices.

• AHRI and efficiency certifications
  For many cases (grants, compliance, comparisons), references like AHRI and efficiency certifications facilitate validations and avoid unclear discussions.

• Controlled acoustic operation
  In a condo or house where the unit is close to a sleeping area, noise is just as important as power. A wall-mounted system needs to be discreet, especially at night.

Key specifications (field version, for owners)

We like to explain this information in simple terms, as it has a direct impact on your experience:

• 220V power supply : this is common for this type of capacity, but the important thing is to respect the electrical parameters (dedicated circuit, protections, correct circuit breaker rating).

• 1/4 – 1/2 piping : these dimensions influence the quality of the installation, particularly on lengths, bends and routing.

• High airflow : useful for “carrying” comfort further in an open area, especially when the configuration is not perfectly central.

• Unit dimensions : it's not just about aesthetics: dimensions also determine location, accessibility for maintenance, and finish.

Why do we place so much emphasis on drainage and de-icing in Quebec?

In Quebec, many winter complaints aren't caused by a faulty unit, but by installation or positioning issues. A wall-mounted heating system will undergo defrost cycles: this is normal. During these cycles, the outdoor unit generates water. If this water freezes in the wrong place, you'll experience well-known symptoms:

• ice buildup around the outdoor unit,

• vibration noise on the base,

• performance is falling.

• and sometimes even interruptions or abnormal behavior.

On projects in Montreal, Laval, and Longueuil , we often see the same weak point: an exterior location that is too low, too close to a wall that blocks drainage, or an inadequate support. That's why we treat water management as a priority, not a detail.

At AirGreen, this translates into concrete choices:

• positioning of the outdoor unit to avoid ice "pockets",

• Sufficient clearance from the ground and walls (even more important on the North Shore , where the problem is not only snow, but also wind),

• Water flow management: we want a logical, controlled, and easily verifiable flow.

• Suitable supports and anti-vibration devices: silence depends as much on the support as on the device itself.

Typical mini “case studies” (anonymized) that we see in Montreal, Laval and on the South Shore

We like to illustrate this kind of product with real-life situations, because the best decisions are rarely made based on a list of numbers.

Case 1 – Condo in Montreal (dense area), open concept + closed bedroom
The client primarily wanted air conditioning, but complained of stifling heat in the living room in the evenings and excessively expensive electric heating during the shoulder seasons. On an 18,000 BTU wall-mounted unit, the difference often comes down to two factors:

1. wall placement (so that air circulates instead of “bouncing” off a wall),

2. the setpoint strategy (avoiding extreme temperature increases/decreases).
   In this type of configuration, the goal is to achieve a feeling of stable airflow, with fewer aggressive cycles and a more uniform temperature.

Case 2 – Duplex in Laval, main floor with stairs to the basement
The weak point wasn't the power output, but the airflow. If the unit is poorly positioned, the basement acts like a "sink," affecting the thermal balance. In this context, we focus as much on air distribution as on the choice of unit: orientation, height, clearances, and providing clear explanations to the client on how to let the heat pump "work" instead of constantly fighting against temperature fluctuations.

Case 3 – Boucherville / South Shore, house exposed to wind and frost
The client had already experienced a frustrating situation: an old unit that seemed to "run out of steam" just when they needed it most. Very often, it's not a complete breakdown; it's a combination of ice buildup, drainage issues, and location problems. In this type of project, the quality of the outdoor installation (support, clearance, positioning) is the factor that transforms the customer experience.

What Inverter technology + R-454B really changes on an 18,000 BTU

Inverter: stability, comfort and intelligent power management

Inverter technology is one of the most important factors in understanding why two wall-mounted units "of the same capacity" can provide completely different experiences.

A non-inverter system often operates more abruptly: it starts, it accelerates strongly, it stops, then it starts again. The result is sometimes:

• significant temperature variations,

• inconsistent comfort,

• and an impression of "too strong" or "too cold" air at startup.

With an inverter system, the appliance aims to modulate its power to maintain a more stable temperature. In real-world use, this translates to:

• fewer “too hot / too cold” variations

• a softer, more comfortable feeling,

• better adaptation to typical Quebec days (cold morning, milder afternoon, more stable evening),

• and often, a more discreet operation because the device is not constantly in “full power” mode.

We also want to emphasize a point that is often misunderstood: a high-performance inverter isn't magic if the air distribution is poorly designed. That's why installation (location and orientation) is just as important as the technology itself.

R-454B: an important transition, but one that requires rigorous installation

R-454B is a modern refrigerant. For a homeowner, the most important consequence is that the quality of the installation and commissioning must be impeccable. We work with a strict approach because this is what protects long-term comfort.

• clean and compliant flaring/expanding

• Serious vacuum cleaner

• leak test,

• consistent lengths and paths,

• clean, affordable, and durable finish.

In short: a good product can become noisy, less efficient, or more fragile if the installation is imprecise. Conversely, a precise installation can make a system truly enjoyable to use for years.

Wi-Fi (optional): useful when used for the right reasons

Wi-Fi is not a necessity for everyone, but it becomes very useful for certain profiles:

• Irregular hours (hybrid work),

• variable presence (e.g., secondary residence),

• simple optimization through programming (rather than constantly manipulating the remote control),

• Remote control to avoid heating/cooling “in a vacuum”.

Our practical advice: Wi-Fi is useful if you like to program and stabilize your system. If you change the settings several times a day, you'll lose some of the benefits.

Warranty: What you need to know to avoid unpleasant surprises

Warranties are often misunderstood. The points that really matter, beyond the number of years printed on a page, are:

• proof of proper installation,

• record keeping (templates, numbers, photos and commissioning notes),

• basic maintenance (filters, clearances, visual inspection),

• and consistent use of the system (a heat pump performs better when it operates regularly, not in an “on or off” fashion).

At AirGreen, we like to keep these elements simple: a clear file, clear instructions, and a clean installation that facilitates service and sustainability.

LogisVert subsidy: how we integrate it into the discussion

For many clients in Greater Montreal, the provincial subsidy (LogisVert) influences their final choice. In our approach, the subsidy is not a marketing ploy; it is a requirement that must be strictly adhered to. We ensure that the information (models, references, compliance) is consistent and that the project documentation is robust.

AirGreen Installation: How we secure performance, subsidies, and peace of mind

Our “simple but strict” method (the one that avoids unnecessary returns)

For an 18,000 BTU wall-mounted heat pump like the Haxxair V2D, here is our standard operating procedure:

1. Validation of the need and air distribution
   We don't just sell BTUs: we assess layout, traffic flow, typical cold spots, room orientation, and occupancy patterns.

2. Location selection (indoor + outdoor)

• Inside: avoid blowing directly onto a resting area, and favour a placement that “works” the room well.

• Outside: we think about the wind, the clearance, the water runoff, the neighborhood and the noise.

3. Clean HVAC installation (piping, vacuum, sealing, finishing)
   Our installations are designed to last and be easy to maintain. A clean connection today often means peace of mind in 5 years.

4. Commissioning + realistic settings
   We explain how to achieve the best yield:

• aim for stable guidelines,

• Clean the filters regularly.

• let the machine work instead of forcing it through extreme changes.

• use the modes strategically (heating, air conditioning, dehumidification as needed).

Common mistakes to avoid (and that we often correct)

Here are the most common mistakes we see when a customer calls us after an installation done elsewhere:

• Outdoor unit too low , exposed to snow/ice accumulation.

• Inadequate support that amplifies vibrations and increases noise.

• Poor indoor placement : the air does not circulate, and the room remains uneven.

• Improvised pipe routing : not only unsightly, but sometimes more vulnerable.

• Instructions misused : constant adjustments that impair comfort and efficiency.

Why choose AirGreen for this model (Montreal, Laval, Longueuil, North Shore, South Shore)

Because a good product deserves execution of the same standard:

• structured on-site assessment

• Clear pricing with a final offer before work begins.

• experienced HVAC installers,

• complete file (useful for grants and monitoring),

• Sustainability-oriented approach: real performance, stable comfort, clean installation.

Let's talk about your project
For a HAXXAIR V2D R-454B 18,000 BTU wall-mounted heat pump installation in Montreal , Laval , Longueuil , on the North Shore or South Shore , contact AirGreen . We assess the configuration, validate the required capacity, and propose a suitable HVAC solution, with a meticulous and documented installation.