LG ARTCOOL MIRROR Mini Split (Black) | R32 | 9000 BTU

A wall unit that integrates as a design element, without sacrificing comfort in winter.

In many Montreal condos and houses, the real challenge isn't "choosing a heat pump." It's successfully combining, in a single project, truly pleasant air conditioning , efficient heating when autumn lingers and winter arrives too early, quiet operation compatible with teleworking, and above all, aesthetic integration that doesn't detract from a carefully furnished room.

The LG ARTCOOL MIRROR Mini Split (Black) | R32 | 9000 BTU perfectly meets this type of need. It's often seen as "the heat pump that looks good." In reality, it's much more than that: it's a wall-mounted system designed for spaces where a clean finish, better-controlled air distribution, and modern technology (inverter modulation, Wi-Fi, automatic functions) are required, simplifying everyday life.

At AirGreen, we install wall-mounted systems throughout Montreal , Laval , Longueuil , the North Shore , and the South Shore . And we've found that this model is particularly relevant in three very common situations:

• recent condos with condominium regulations and facade constraints;

• renovated houses where the decor is important and where they want to avoid "the standard white appliance";

• targeted rooms (living room, master bedroom, office) where comfort and silence are non-negotiable.

What exactly this system is (and why these details matter)

The term "mini split" is often used in all sorts of contexts. Here, we are talking about a simple zone system : a wall-mounted indoor unit (the "mirror" panel) and an outdoor unit, connected by refrigerant piping.

• Appliance type: wall-mounted heat pump (single-zone mini split )

• Nominal cooling capacity: 9,000 BTU

• Refrigerant: R-32

• Wi-Fi: included (remote control)

• Certification: ENERGY STAR® and ENERGY STAR® Cold Climate (depending on the information on your product page)

• Warranty: Compressor 10 years, parts 10 years, labor 0 years (depending on your information)

This level of detail is not “administrative”. It directly influences:

• the way the system will be installed (electricity, piping, clearances);

• actual heating performance depending on the season;

• maintenance, reliability and quality of comfort.

Why 9,000 BTU can be perfect… or insufficient: sizing without approximation

The 9,000 BTU unit is one of the most requested capacities in Quebec, especially for condos and urban housing. But it shouldn't be chosen "out of habit." A 9,000 BTU unit is often perfect when:

• the area to be covered is clearly defined (e.g., a reasonably sized open-plan living room/kitchen);

• the building envelope is adequate (insulation, windows, little infiltration);

• The doors are often left open or the air circulation is natural.

It becomes insufficient when:

• we want to "heat the whole house" with a single wall unit placed on the ground floor;

• the area is very glazed, facing due south, or subject to large solar gains;

• The space is on several levels without effective air circulation.

At AirGreen, we have a simple approach: we never size based solely on square footage. We discuss the actual usage: who occupies the room, at what times, what level of comfort is expected, and how the house or condo reacts to temperature variations. This prevents disappointments like, "It works, but never exactly as I wanted."

A quality of comfort that comes primarily from the modulation (and not just the capacity)

Many homeowners have experienced this with older models: it starts up strong, blows very cold air, then shuts off. It starts up again. It shuts off again. The result: fluctuating temperature, drafts, and a feeling of discomfort even if the unit is "powerful".

The LG ARTCOOL Mirror is designed to work differently: thanks to inverter technology, it adapts its power to actual needs. In practice, this means:

• a more stable temperature in the room;

• fewer “on/off” cycles;

• a lower noise level most of the time;

• a more logical consumption, because the system does not force unnecessarily.

This is an important distinction: two 9,000 BTU systems don't necessarily offer the same level of comfort. Capacity is one thing; how it's achieved is another.

Air distribution: an often underestimated point in condos

In a condo, the main room is rarely "simple". It often has:

• an open-plan living room/kitchen area;

• a corridor or a transition zone;

• variable ceilings (beams, soffits, returns);

• furniture positions that impose constraints (sofa, table, TV, desk).

This is where good management of flaps and airflow directions becomes a real advantage. The goal is simple: to obtain an airflow that mixes well, without blowing directly on the occupants.

At AirGreen, we take the time to adjust:

• the direction of the airflow according to habits (living room in the evening, office during the day);

• the exposure height to avoid “air in the face”;

• the ventilation method depending on the season.

This is often the difference between "you can feel the air" and "you can feel the comfort".

Silence: when 21 dB becomes a real selection criterion

On paper, many systems advertise figures. In real life, customers remember one thing: can I hear it when I'm working, when I'm sleeping, when everything is quiet?

In a typical Montreal project (condo, closed bedroom, office), silence is the priority. A silent wall unit is valuable, but it can become noisy if the installation is poorly planned. We emphasize three aspects:

1. Smart indoor placement
   A device placed too close to a corner or alcove can create sound reflection and a louder perceived "hiss." A wall is preferable as it allows for more open sound diffusion.

2. Vibrations: the classic error of the outdoor unit
   A poorly supported outdoor unit can transmit vibrations to the wall, structure, or balcony. The customer then thinks "the machine is noisy," when in fact the problem lies with the support or anchoring.

3. Pipe length and routing
   Poorly secured piping or piping in contact with structural elements can amplify vibrations. A clean, well-secured, and well-insulated installation changes the perceived sound.

R-32: What it really changes for the owner

R-32 is one of the modern refrigerants increasingly found on the market. For a homeowner, the important thing is not to memorize a technical data sheet: it's to understand the concrete impacts.

• A more current and standardized approach : new systems are evolving towards this type of refrigerant, and installation practices are being modernized.

• Rigorous installation : sealing, procedures, tests and quality of work become even more important.

• Safety and design logic : R-32 systems incorporate elements designed for safe use.

In short: R-32 is not “a marketing argument” in itself, but an indicator that the device is a modern solution, designed according to current standards.

HVAC installation: why this model demands impeccable finishing

A model like the ARTCOOL Mirror is eye-catching. Therefore, the installation should be too. In a room where you've invested in finishes, a sloppy installation is immediately noticeable: crooked wall outlet, poorly fitted cover, exposed pipes, poorly managed drain, etc.

At AirGreen, our logic is clear: a high-end wall installation must be clean in two ways:

• technical (performance, compliance, reliability, drainage, electricity);

• visual (alignment, finish, discretion, cleanliness of the site).

AirGreen case study: condo in Montreal, constrained facade and comfort demanded “without compromise”

Typical scenario: recently built condo, open concept, strict condominium regulations. The client wants:

• stable comfort in summer;

• a very efficient heating system in the mid-season;

• a discrete system;

• an aesthetic integration consistent with the decor.

Our approach:

1. Validation of the actual need
   We measure the area, taking into account the windows, the orientation, and the occupancy habits.

2. Choosing an indoor location that respects comfort
   Not just “the easiest wall”. The right wall is one that diffuses air without creating discomfort.

3. Pipe routing and drain management
   In a condo, this is often the most delicate part. We plan a logical and clean route, paying particular attention to drainage to avoid future problems.

4. Outdoor unit: vibration and compliance
   We prefer an assembly that limits vibrations, respects clearances, and integrates into the space imposed by the building.

The result: a system that quickly becomes “invisible” in everyday life, because it does exactly what we expect from a modern heat pump: maintain comfort without disturbing.

AirGreen case study: home office in Laval, absolute priority on silence

Another common scenario: a closed office, remote work, video calls, concentration. The client wants:

• gentle air conditioning;

• no annoying noise;

• a stable temperature without drafts.

Our key points:

• blower direction to avoid direct air onto the workstation;

• appropriate settings (low ventilation most of the time);

• Outdoor installation designed to avoid vibration transmission.

This type of project is revealing: a high-performance mini split system is not just "powerful". It must be intelligent and discreet.

Costly mistakes (that we systematically avoid)

In HVAC after-sales service, we see recurring problems. Most of them don't stem from the product itself, but from decisions made too hastily:

• Installing too high or too low : direct impact on air diffusion and comfort.

• Ignoring air circulation : a mini split system doesn't replace the logic of indoor air circulation. If the room is divided into sections, a strategy is needed.

• Poorly designed drain : insufficient slopes, poor routing, risk of backflow.

• Poorly positioned outdoor unit : lack of clearance, air recirculation, reduced performance, increased noise.

• Underestimating maintenance : dirty filters = reduced airflow, less comfort, decreased efficiency.

At AirGreen, we insist: a high-end device must be accompanied by consistent installation and use. This is what results in a stable, durable, and enjoyable system.

Efficiency, features and usage: how to get the most out of it

This model is appreciated because it combines design and useful functions, but it is usage habits that maximize the result:

Best practices in air conditioning

• maintain a reasonable guideline rather than going too low all at once;

• use modulation: let the device work stably rather than turning it on and off;

• Adjust the flaps to promote a mixture of air rather than a direct blow.

Best practices in heating (Quebec)

• aim for a stable temperature in mid-season: this is when the heat pump gives the best performance;

• avoid extreme variations in setpoint (the system then has to “catch up”, which can increase the sensation of breath);

• Keep the outdoor unit clear, especially during snow and ice conditions.

Wi-Fi control: more useful than you think

In real life, Wi-Fi is mainly used for three things:

• pre-condition the room before arrival (immediate comfort);

• manage simple schedules (e.g., slight decrease at night, increase in the morning);

• control the temperature remotely when you are away.

HVAC Maintenance: The Simple Plan That Avoids Most Problems

Even with modern features, maintenance remains the best guarantee of comfort. For a mini wall-mounted split system:

• Filters : Regular cleaning (depending on usage, pets, dust, renovations) maintains airflow and efficiency.

• Outdoor unit : clearing, leaves, snow accumulation, and periodic visual inspection.

• Seasonal inspection : useful if the system is working a lot, or if the customer wants to optimize long-term performance.

We often say it: a well-maintained wall-mounted heat pump retains its efficiency better, remains quieter, and avoids unpleasant surprises.

We particularly recommend the LG ARTCOOL MIRROR (Black) 9000 BTU

This model is an excellent choice when:

• You want a wall-mounted heat pump that blends naturally into the decor;

• you have a targeted area to make comfortable (living room, bedroom, office);

• Silence is important;

• You want a modern solution with Wi-Fi ;

• Are you looking for an efficient system for air conditioning in the summer and heating especially in the mid-season in Montreal , Laval , Longueuil , on the North Shore or the South Shore ?

Why choose AirGreen for this mini split system (and what difference does it actually make)?

A mini split system may seem "simple" to install. In practice, a flawless installation requires consistent method and precision.

At AirGreen, we focus on:

• an on-site assessment to validate the actual constraints (wall, condo, electricity, drainage, outdoor location);

• transparent pricing with a clear final offer before work begins;

• experienced refrigeration technicians for installation and service;

• a clean execution: finishes, sealing, vibration management, explanation of functions, and maintenance recommendations.

This is exactly what our customers are looking for: a system that works well, for a long time, and that does not create unforeseen problems.

Next Step!

For an accurate quote and professional HVAC installation of the LG ARTCOOL MIRROR Mini Split (Black) | R32 | 9000 BTU in Montreal , Laval , Longueuil , on the North Shore or South Shore , contact AirGreen. We assess your space, your constraints, and your objectives, then propose a clear, compliant, and sustainable solution.