KINGHOME Airy R32 Wall-Mounted Heat Pump | 18000 BTU

In stock
SKU: KW18XQ29S1DO
Provincial Subsidy (LogisVert): 2340 $ (Updated: November 26, 2025)
Model Number (Interior): KW18XQ29S1DI
Model Number (External): KW18XQ29S1DO
AHRI: 217903559
ENERGY STAR®: Yes
ENERGY STAR® (Cold Climate): Yes / Yes
# ENERGY STAR ID: 4514304
Heating Capacity: -30 °C
Cooling Capacity: 18,000 BTU
Gas (Freon): R-32
WiFi: Included

SEER2 (Seasonal Air Conditioning Efficiency)

1 27.5

HSPF2 (Seasonal heating efficiency)

1 10.0 15

EER2 (Instantaneous efficiency in air conditioning)

1 14.3 20

COP at -8 °C (Heating energy efficiency)

1 1.8 3
Nominal Power: 18,000 BTU
Power at -8°C: 19500 BTU
Power at -15°C: 18000 BTU
Interior Dimensions (L x D x H): 43.70 x 10.13 x 13.66 in
Vertical flap control (Air direction): Auto
Horizontal flap control (Air direction): Auto
Sound Pressure Level (Indoor): 35 / 49 dB(A)

CFM (Airflow)

1 736
External Dimensions (L x W x H): 37.72 x 15.83 x 25.98 in
Piping: 1/4 - 5/8 po
Sound Pressure Level (Exterior): 59.0 dB(A)
Voltage: 220 V
MCA (Minimum Circuit Ampacity): 20 A
MOP (Maximum Overcurrent Protection): 25 A
Warranty (Compressor - Parts - Labor): 12-12-0 years
Additional Warranty: Possible

A wall-mounted heat pump designed for large Quebec spaces, without compromising on winter heating

The KINGHOME Airy R32 Wall-Mounted Heat Pump | 18,000 BTU is for owners looking for a serious solution to efficiently air-condition a large open-concept area, a spacious condo, a main floor, a light commercial space, or a residential zone that is difficult to stabilize. At AirGreen, we position it as a particularly relevant option when the client wants to combine efficient heating down to -30 °C, effective air conditioning, quiet indoor operation, and eligibility for a provincial LogisVert grant of $2,340, according to the information displayed for this model.

In Greater Montreal, we often encounter the same scenario: a house with an open-concept living room, dining room, and kitchen, an old heat pump that has become insufficient, or a central system too costly to replace. In these cases, a well-chosen 18,000 BTU wall-mounted heat pump can offer an excellent balance between comfort, installation cost, and energy efficiency. The KINGHOME Airy R32 precisely meets this need thanks to a nominal cooling capacity of 18,000 BTU, solid heating capacity in cold weather, and a design adapted to the climatic requirements of Montreal, Laval, Longueuil, the North Shore, and the South Shore.

What distinguishes the KINGHOME Airy R32 18,000 BTU

This heat pump is not merely an air conditioning unit with a heating function. It is a Cold Climate ENERGY STAR® wall-mounted heat pump, designed to maintain reliable performance in real winter conditions. The indoor model is KW18XQ29S1DI and the outdoor model is KW18XQ29S1DO, with AHRI 217903559 and ENERGY STAR® ID 4514304.

Among the most useful features for Quebec customers are:

  • Heating capacity down to -30 °C
  • R-32 Refrigerant, newer and more efficient than several older gas generations
  • WiFi included
  • ENERGY STAR® and ENERGY STAR® Cold Climate
  • Rotary compressor
  • Electronic expansion valve
  • Outdoor unit base heating
  • Electric compressor heating
  • Forced defrost function
  • Soft start
  • I-Feel function
  • 8 °C heating mode
  • Self-cleaning
  • Infrared remote control included

These elements are not secondary details. In an HVAC installation in Quebec, the behavior of the outdoor unit during freezing, defrost, and restart cycles directly impacts the reliability of the device. A well-designed outdoor unit, installed at the correct height and with the necessary clearances, reduces risks related to snow accumulation, ice, and defrost water drainage.

Technical Performance: Useful figures for making a good decision

The KINGHOME Airy R32 offers a nominal cooling capacity of 18,000 BTU, with a cooling range that can vary from 4,435 to 25,590 BTU depending on conditions and demand. For heating, the stated nominal capacity is 18,600 BTU, with a range up to 26,272 BTU.

Low temperature performance data is particularly interesting:

  • At 8.3 °C, the nominal heating capacity reaches 18,600 BTU
  • At -8.3 °C, the stated capacity is 19,500 BTU
  • At -15 °C, the capacity remains at 18,000 BTU

For an owner in Montreal, Laval, or Longueuil, these values are very concrete. They mean that the appliance does not become merely symbolic as soon as the temperature drops. It continues to deliver significant heating capacity, which can reduce the use of electric baseboards, improve comfort, and stabilize rooms that cool down quickly.

In terms of energy, the technical sheet indicates:

  • SEER2: 27.5
  • HSPF2: 10
  • EER: 4.2 W/W
  • COP: 4 W/W

This data confirms that this KINGHOME wall-mounted heat pump is in a serious category for customers who want to reduce their electricity consumption without sacrificing comfort. In a typical house on the South Shore or North Shore, the result will also depend on insulation, window orientation, airflow, and installation quality. This is precisely where the role of an experienced HVAC contractor becomes essential.

Installation: the details that make the difference on site

A high-performance heat pump can yield average results if poorly installed. At AirGreen, we pay particular attention to the indoor unit's placement, the path of the refrigerant lines, drainage, mechanical protection of the lines, and accessibility for future HVAC maintenance.

For this model, the piping is 1/4 - 5/8 inch, with an electrical supply of 208-230V / 60Hz / 1 phase. The minimum circuit ampacity is 20A, with a maximum protection of 25A. The recommended power wire is 12/3 AWG, while the interconnecting wire is 14/4 AWG.

These specifications are important when replacing a unit. For example, in some duplexes in Rosemont, Villeray, Ahuntsic or Longueuil, older installations sometimes use piping or electrical supply that does not directly suit the new appliance. Before confirming a final offer, we verify the real constraints: distance between units, condition of existing lines, electrical panel location, outdoor clearance, and proper condensate drainage.

The data sheet also indicates a maximum refrigerant piping length of 131 feet, with a maximum vertical difference of 82 feet. This provides good flexibility for various configurations: outdoor unit in the backyard, on a wall bracket, on a ground-level base, or in some cases on an accessible roof, depending on applicable regulations and technical feasibility.

Outdoor unit: height, clearances and snow protection

For an installation in Quebec, the outdoor unit should never be placed as it would be in a mild climate. The documentation indicates that the unit must be installed a minimum of 18 inches above surfaces to allow for snow clearance and defrost water drainage. This is a point that we systematically apply at AirGreen.

In the field, this rule prevents several common problems:

  1. Snow accumulation around the outdoor coil.
  2. Ice formation under the unit after defrost cycles.
  3. Reduced airflow around the fan.
  4. Vibrations caused by an unstable base.
  5. Avoidable service calls in the middle of winter.

In Laval, we often have installations in single-family homes where the outdoor unit must be positioned far from mechanical snow removal areas. In Boucherville, Brossard, or Saint-Bruno, backyards can offer good locations, but one must consider fencing, neighbors, terrain slope, and water flow. In Montreal, space is sometimes more restricted, especially in alleys or shared yards. Good planning avoids compromises that become costly later.

Indoor unit: high airflow, comfort, and quiet operation

The indoor unit of the KINGHOME Airy R32 18,000 BTU features an airflow rate that can reach 736 CFM in Turbo mode, with several intermediate speeds. The indoor sound level varies from 35 dB(A) in Sleep mode to 49 dB(A) in Turbo mode.

This range is interesting for large spaces, as too low an airflow can create uneven comfort: one area quickly becomes cool or warm, while another remains uncomfortable. With an 18,000 BTU unit, wall mounting becomes strategic. We avoid blowing directly towards a sofa, dining table, or workstation. We favor a diffusion axis that allows covering the main room without creating an uncomfortable draft.

The I-Feel function is also appreciated, as it allows adjusting comfort according to the temperature felt around the remote control, rather than solely based on the wall unit's sensor. In a large living room or open-concept area, this detail can improve comfort precision.

A concrete example of AirGreen installation

During a recent replacement in a South Shore home, the client primarily used electric baseboards to heat an open-concept ground floor. The old wall-mounted air conditioner still cooled partially but barely heated effectively once the first cold snaps arrived. The client wanted a solution capable of reducing temperature differences between the living room and kitchen, without undertaking major renovations.

After inspection, we recommended an 18,000 BTU wall-mounted heat pump with real winter capacity. The main challenge was the outdoor unit's location: the backyard was exposed to snow accumulation from the roof. So, we planned an installation on an adapted support, with sufficient clearance, a clean piping path, line protection, and appropriate drainage slope.

The result was immediate: better air circulation, more stable heating on the ground floor, and reduced use of baseboards during moderately cold periods. This type of result comes not only from the machine but from the whole package: good capacity choice, good installation, good configuration, and clear explanation of use to the client.

Common mistakes to avoid with an 18,000 BTU heat pump

A successful HVAC installation relies as much on preparation as on the installation itself. Here are the mistakes we often see during evaluations or corrections of existing installations:

Choosing capacity based solely on surface area

Surface area is important, but it's not enough. A room with high ceilings, large windows, poor insulation, or a south-facing orientation may require a more precise analysis. Conversely, an oversized unit in a confined area can lead to short cycling and less stable comfort.

Neglecting the indoor unit's location

A poorly oriented unit can create cold spots, drafts, or disappointing performance. The chosen wall must allow for good diffusion, reasonable maintenance access, and reliable drainage.

Installing the outdoor unit too low

In Quebec, an outdoor unit placed too close to the ground is more vulnerable to snow and ice. For a heat pump used for heating, this detail is crucial.

Reusing old lines without verification

In some replacements, reuse is possible, but it must be seriously verified. At AirGreen, we examine the condition of the lines, diameter, compatibility, routing, insulation, and internal cleanliness before proposing this option.

Forgetting maintenance

Good HVAC maintenance extends the appliance's lifespan, maintains efficiency, and reduces the risk of breakdowns. Filters, evaporator, drain, outdoor unit, and defrost cycles should be monitored periodically.

Warranty and peace of mind

The KINGHOME Airy R32 18,000 BTU is displayed with a 12-year parts and compressor warranty when registration conditions are met, while labor is indicated as 0 years by default. At AirGreen, it is possible to discuss an additional warranty for labor, depending on the client's needs and the type of project.

This distinction is important. Many customers believe that the manufacturer's warranty automatically covers everything. In reality, parts, compressor, labor, travel, and diagnostics can be handled differently depending on the contract, installer, and product registration. We take the time to explain these elements clearly before installation.

Why choose AirGreen for this KINGHOME heat pump

AirGreen operates throughout Greater Montreal, particularly in Montreal, Laval, Longueuil, on the North Shore and the South Shore. Our approach is based on a realistic assessment of the building, careful installation, and structured after-sales service.

We don't just install a box on the wall. We analyze:

  • The truly necessary capacity
  • The best indoor location
  • Outdoor clearance
  • Piping route
  • Electrical supply
  • Drainage
  • Noise level
  • Access for maintenance
  • Applicable subsidies
  • Warranty options

This method allows us to offer a tailored solution, whether for a single-family home in Laval, a condo in Montreal, a multiplex in Longueuil, a residence on the North Shore, or a family property on the South Shore.

A relevant solution for four-season comfort

The KINGHOME Airy R32 Wall-Mounted Heat Pump | 18,000 BTU is a solid choice for customers who want a high-performance wall unit, well-suited to the Quebec climate, and capable of significantly contributing to winter heating. Its ENERGY STAR® Cold Climate eligibility, R-32 operation, included WiFi, heating capacity down to -30 °C, and advertised LogisVert subsidy of $2,340 make it a very attractive option in its category.

For lasting results, installation must be carried out with precision. At AirGreen, we combine technical expertise, local experience, and transparency to offer a reliable, aesthetic, and building-appropriate HVAC solution.

Contact AirGreen today to get a quote, validate your project's eligibility, compare the best available options, and schedule the installation of your KINGHOME Airy R32 18,000 BTU wall-mounted heat pump in Montreal, Laval, Longueuil, on the North Shore or the South Shore.