LG DUALCOOL R32 Heat Pump | 12000 BTU | Laval

A 12,000 BTU unit designed for our winters, without compromising on comfort.

In Laval , choosing a 12,000 BTU wall-mounted heat pump isn't a default decision. It's very often the smartest size for a condo, an open-concept bungalow, a single floor of a house, or a specific area (living room/kitchen, common area, or even a large suite). The goal isn't just to have heating and cooling: it's to achieve consistent comfort , well-controlled airflow, and performance that remains consistent when the outside temperature fluctuates from -20°C to the humid days of July.

The LG DUALCOOL R32 | 12,000 BTU heat pump that we regularly install in Greater Montreal stands out particularly for very concrete reasons, which are evident on a daily basis:

• It operates with R-32 gas , a modern refrigerant that is increasingly used in residential settings, particularly as it is part of the transition of equipment towards more modern solutions.

• It is designed to provide heating even when winter sets in, with a claimed capacity down to -16°C .

• It includes WiFi , which really changes the way you manage comfort: remote control, simple programming, and quick adjustments when your schedule changes.

Product identity (data useful for grant, compliance and service)

In the HVAC industry, documentation is not a mere administrative detail. It's what ensures successful grant applications, guarantees that the correct equipment is registered, and makes life easier should you ever need follow-up support.

• Interior model: KNUAB121A

• Exterior model: KUSAB121A

• AHRI: 215413008

• ENERGY STAR®: Yes

• ENERGY STAR® (Cold Climate): Yes

• Provincial subsidy (LogisVert): $1,020 (updated: November 26, 2025)

In reality, it is these references that avoid unnecessary delays and exchanges: they serve to prove precisely what has been installed, where, and on what date.

What we like to check before installation (the difference between “installing” and “installing correctly”)

A wall-mounted heat pump can be installed “quickly,” but a long-lasting installation relies on a series of decisions that aren't necessarily visible in a final photo. At AirGreen , we've developed a very simple working method: eliminate the small problems that become big ones after a winter or two.

Before installing an LG DUALCOOL R32 12,000 BTU heat pump , we always verify:

• The way heat and cold air will circulate in your space (and not just the square footage).

• The most logical location to avoid direct drafts, especially in rest areas.

• The presence of invisible obstacles (ceiling return, beams, column, existing conduit, structure) that could force incorrect positioning.

• Future access for maintenance (yes, a unit that is too visually “perfect” can become a maintenance nightmare if it is inaccessible).

It is precisely this type of analysis that makes the difference between a machine that "works" and a machine that provides truly pleasant comfort .

What we observe in Laval during installations and service calls

In Laval , most requests for wall-mounted heat pumps look similar on paper. But when you arrive on site, you discover that each house has its own challenges: orientation, insulation, air volumes, circulation between rooms, and even lifestyle habits (presence of children, teleworking, pets, frequent cooking, etc.).

Here are the most frequent scenarios we encounter, and how this LG DUALCOOL R32 12,000 BTU fits into them.

Scenario 1 — Condo or house floor: priority to silence and control

In many condos in Chomedey , Laval-des-Rapides , or near major roads, the challenge isn't raw power. The challenge is stable, quiet comfort , especially when the unit is close to a bedroom or office.

This heat pump has an indoor noise level that can drop to 29 dB(A) at low speed. In real-life situations, this translates to something simple: you forget the machine is even there. It becomes a discreet background noise rather than something you notice.

A common mistake to avoid: installing the wall unit "wherever it fits," near a corner or too close to a wall return. The result: air bounces around, the temperature reading is inaccurate, and comfort becomes uneven (too hot near the unit, too cold at the back).

At AirGreen , we correct this problem before it happens: the location is chosen for diffusion, not just for aesthetics.

Scenario 2 — Open-plan bungalow: manage diffusion, not just BTUs

In typical Laval bungalows, you often see an open-plan living room/kitchen, then a hallway leading to the bedrooms. A 12,000 BTU unit can cover most of the space, but the result depends on the airflow direction and the unit's ability to adjust its distribution.

Here, the automatic control of the shutters (vertical and horizontal) becomes a real advantage, because the air can be directed to reach “difficult” areas (often the corridor, sometimes a dining area or an area near a staircase).

Practical lesson: Comfort in bedrooms sometimes depends more on the doors (open/closed) and natural air circulation than on the model itself. A successful installation always includes simple usage tips tailored to your layout.

Scenario 3 — Client targeting LogisVert: documentation and consistency

Many projects in Laval are motivated by the LogisVert grant . In these cases, success often depends on rigor:

• The correct model numbers ( KNUAB121A / KUSAB121A )

• The correct AHRI: 215413008

• The ENERGY STAR® and Cold Climate labels

• A clear, complete, and consistent invoice (address, date, description, RBQ, etc.)

At AirGreen , we know that the quality of the application is as important as the quality of the installation, because it is what avoids delays, refusals, or “missing documents”.

Installation details that really matter (and explain the long-term difference)

Piping: the foundation of reliability

The typical piping for this configuration is 1/4 – 3/8 . This is a common format, but the installation quality is not.

A heat pump can lose performance for invisible reasons:

• incomplete insulation,

• loose fittings,

• A botched vacuuming job

• line length not optimized,

• Drain management neglected.

What we often see during repairs is "forgotten" insulation a few inches near the joints. In winter, this can become a point of condensation, then a recurring problem.

At AirGreen , we emphasize a complete finish, because that's what allows the machine to maintain its efficiency and stability.

Water management (drainage): a detail that avoids a lot of hassle

In cooling mode, a heat pump naturally produces condensation. If the drain is poorly designed (insufficient slope, low point, incorrect trap), you may end up with:

• drips or moisture near the unit,

• smells,

• water accumulation in the line,

• avoidable service calls.

Our rule is simple: a drain should be thought of as a permanent system, not as an improvised pipe.

Electricity: Protect equipment and comply with standards

This heat pump operates on 220V , with important protection parameters:

• MCA: 12A

• MOP: 15A

In reality, this means:

• correctly sized circuit breaker

• suitable wire gauge

• safe route

• and installation in accordance with standards.

A proper HVAC installation is not just about “plugging in a machine”, it’s about protecting your investment.

Outdoor noise level: realistic expectations and good location choices

The outdoor unit is advertised at 51 dB(A) . In practice, the perceived noise level depends primarily on the installation:

• solid supports,

• anti-vibration devices,

• distance from a room,

• avoid a corner where the sound bounces off a wall.

In Laval , we often see outdoor units installed too close to a side wall, which amplifies the noise. A better position, even moved just a few tens of centimeters, can make a difference.

Heating performance: understanding what “heating down to -16°C” means

Many customers tell us, "I want a heat pump that heats in winter." That's normal. But this point deserves some important clarification.

A heat pump doesn't work like an electric furnace: its efficiency depends on the outside temperature. The colder it is, the harder the machine has to work. That's why it's essential to choose a suitable unit, but also to understand what influences actual comfort:

• home insulation,

• air infiltration,

• room configuration,

• ceiling height,

• exposure to wind,

• habits (open doors, bathroom fans, kitchen hood used frequently).

In several projects in Laval , we have found that a well-chosen and well-installed 12,000 BTU heater can provide remarkable comfort in the main area, and greatly reduce the use of electric baseboard heaters, especially at "intermediate" temperatures (autumn, spring, and a good part of winter).

Air conditioning: stability, humidity and summer comfort

In summer, the requests are often the same:

• “I want to stop feeling hot”

• “I want to sleep”

• “I want to reduce the humidity”

• “I want to avoid the machine making noise”

A properly sized 12,000 BTU heat pump does more than just cool: it also helps stabilize humidity, which greatly improves the feeling of comfort.

A common mistake to avoid is oversizing your system "to be on the safe side." An oversized machine cools down too quickly and then shuts down. The result: humidity remains high, and you have a feeling of "heavy" air, even if the thermostat indicates a suitable temperature.

At AirGreen , we favour a balanced approach: a machine that operates more often at a stable speed provides more pleasant comfort than a machine that makes short cycles.

Built-in WiFi: useful when used correctly

WiFi isn't a gimmick if you use it logically. In practice, our customers in Laval primarily use remote control to:

• Adjust the temperature before returning home from work

• Avoid leaving the machine too cold or too hot while you are away.

• Managing variable schedules (teleworking, school, daycare)

• Check the operating status quickly if in doubt

A tip we often give: instead of large temperature fluctuations, it's better to maintain a reasonable and stable temperature setting. The machine works more efficiently, and the comfort is more consistent.

Filtration and air quality: an often underestimated point

Filtration plays an important role, especially in homes where there is:

• dust,

• animals,

• seasonal allergies,

• car traffic near the house,

• Frequent work (renovations, basement, etc.)

This unit uses a washable pre-filter and fine filtration (micro-dust type). It's not an industrial air purifier, but in normal residential use, it's a real plus for keeping the heat exchanger clean and maintaining good air quality.

Recommended routine:

• Pre-filter: regular cleaning during periods of intensive use (summer and winter).

• Visual inspection: check if dust accumulates quickly (this often indicates a need for adjustment of habits or more frequent maintenance).

• Periodic HVAC maintenance: more thorough cleaning, drain inspection, heat exchange check.

HVAC Maintenance: What Really Extends Lifespan

In the service calls we make, the majority of "problems" are not breakdowns. They are symptoms of neglected maintenance or specific conditions:

• clogged filter

• partially blocked drain

• The outdoor unit is obstructed by snow or debris.

• poor air circulation in the room,

• Inadequate settings (mode, ventilation, setpoint).

What we recommend in Laval:

• An annual or periodic check depending on your usage.

• More frequent maintenance is required if you have pets or a dusty environment.

• Clean clearances around the outdoor unit (summer and winter).

Preventive maintenance is almost always cheaper than an emergency call, especially during heat waves.

Guarantee: understand the “10-10-0” and plan intelligently

The advertised 10-10-0 year warranty (compressor – parts – labor) must be clearly understood:

• Compressor: 10 years

• Parts: 10 years

• Labor: 0 years (unless an additional warranty is purchased)

In practical terms, this means that even if a part is covered, the cost of intervention (diagnosis, travel, labor) is not automatically covered. That's why we always explain the extended warranty options: in many situations, it transforms an unpredictable cost into a much more stable budget.

Why choose AirGreen for this heat pump in Laval?

Two installations may appear identical in a photo. However, the difference becomes apparent after 12 to 36 months: stability, noise, consumption, and number of service calls.

With AirGreen , you get:

• A recommendation based on your actual configuration (volumes, air circulation, exposure, habits).

• A reliability-oriented HVAC installation: careful piping, sealing, proper drainage, anti-vibration supports, complete commissioning.

• Clear documentation (useful for LogisVert ).

• A simple approach: tailored settings, best practices, maintenance and realistic expectations.

We install and maintain HVAC systems in Montreal , Laval , Longueuil , on the North Shore and the South Shore , with the same requirement: to do a job that remains solid and pleasant to live in on a daily basis.

Next Step!

Are you in Laval (or anywhere in Montreal , Longueuil , North Shore , South Shore ) and considering the LG DUALCOOL R32 12,000 BTU Heat Pump ? Contact AirGreen for an on-site estimate and a clear proposal: sizing, optimal location, installation details and warranty options.