SHARP CHU Wall-Mounted Heat Pump | 18,000 BTU | R32 -30°C

A wall-mounted heat pump designed to withstand Quebec winters

The SHARP CHU wall-mounted heat pump | 18,000 BTU | R32 -30°C is one of the systems we regularly recommend at AirGreen when our clients are looking for a reliable, high-performance solution adapted to the climatic realities of Montreal, Laval, Longueuil, the North Shore and the South Shore .

This specific model (AY-XP18CHU indoor / AY-XP18CHU outdoor – AHRI 217508925) combines:

• Heating capacity down to -30°C

• A rated power of 18,000 BTU

• A low-environmental-impact R-32 refrigerant

• ENERGY STAR® Cold Climate Certification

• WiFi included

• 10-year compressor warranty / 10-year parts warranty (labor optional)

In our daily practice in HVAC installation , this type of unit perfectly meets the needs of spacious condos, open single-family homes and entire floors of approximately 900 to 1,200 sq ft, depending on the insulation.

Actual heating performance at -30°C: what this means in practice

Many owners see "-30°C" and simply think of it as a marketing gimmick. In reality, the technical figures are crucial.

Measured capacities

• 18,000 BTU nominal

• 22,600 BTU at -8°C

• 19,500 BTU at -15°C

• Reliable operation down to -30°C

• COP at -8°C: 12.23

• SEER2: 25.0

• HSPF2: 13.0

These values ​​mean that at -8°C , the unit can produce more than its rated power. For our customers in Boucherville, Terrebonne, or Saint-Eustache , this translates to:

• Less activation of the auxiliary heating system

• Stable comfort even during cold spells

• Reduction in electricity bill

We recently installed this heat pump in a duplex in Ahuntsic. The owner previously used electric baseboard heaters exclusively. After the installation, their winter energy consumption decreased significantly from the first month, without any loss of comfort.

Coanda Airflow Technology: Air distribution over 50 feet

The CHU series incorporates Coanda Airflow technology. In practice, air is projected towards the ceiling in cooling mode and towards the floor in heating mode, creating natural circulation.

Result :

• Less direct draft

• more uniform temperature

• A more natural feeling of comfort

In open-plan apartments in Longueuil or Laval , this technology often makes it possible to avoid installing a second unit.

Multi Space and Spot Air function: intelligent zone management

Multi Space

A single unit can send air to adjacent spaces (living room + hallway + dining room). This feature is particularly useful in modern condos.

Spot Air (University Hospital series)

Allows you to concentrate the airflow towards a specific area.

Concrete example:
In a house in Blainville , we configured the Spot Air function to direct the heating towards a frequently used office area. The client appreciates being able to adjust the direction without affecting the entire room.

R-32 refrigerant: more environmentally friendly and more efficient

R-32 gas has the following properties:

• A lower global warming potential than R-410A

• Improved energy efficiency

• A reduced refrigerant charge

For owners concerned about environmental standards in Quebec , this is a real advantage, especially with subsidy programs like LogisVert ($2712 as of November 2025) .

Designed for cold climates: Hot Gas Pipe system

The outdoor unit incorporates a Hot Gas Pipe defrosting system. Unlike traditional electric heating elements, this system reuses the generated heat to prevent freezing.

Benefits :

• Faster defrosting

• Fewer ineffective cycles

• Optimized consumption

In Laval-Ouest , we observed that this system significantly reduces the periods when the unit appears to be “stopped” during defrosting.

Remarkable interior silence

• 25 dB(A) minimum indoors

• 52 dB(A) outdoors

In a condo in Ville-Marie , a client working from home wanted an extremely discreet system. At low speed, the noise level is practically imperceptible.

Simplified maintenance and After Care function

The CHU series simplifies HVAC maintenance :

• Easily accessible filter

• Quick vacuum cleaning

• After Care function: automatic internal drying after each cycle

This function reduces:

• Residual moisture

• The risk of mold

• Unpleasant odors

This is a point we always explain during our installations in Montreal and on the South Shore .

Built-in WiFi and SHARP mobile app

Remote control allows:

• Temperature adjustment

• Timetable

• Energy monitoring

• Filter cleaning alerts

For owners of secondary residences in Montérégie , this function is particularly practical.

Technical installation: what we check at AirGreen

Piping: 1/4 – 3/8 in
Voltage: 220V
MOP: 25A

During every HVAC installation in Montreal or Laval , we analyze:

• Electrical panel capacity

• Length of refrigeration pipes

• Anti-vibration wall mount or base

• Adequate condensate drainage

• Compliance with RBQ standards

Our team is covered by $5,000,000 liability insurance and holds RBQ license #5645-9605-01.

Common mistakes to avoid

1. Undersize the unit to save money.

2. Neglecting wall placement (direct impact on airflow).

3. Install too close to the ceiling.

4. Ignoring the quality of the external support.

We have already corrected poorly positioned installations in Repentigny where air was not circulating properly in the space.

Dimensions and aesthetic integration

Indoor unit:
41.42 x 9.80 x 12.44 in

Outdoor unit:
33.47 x 13 x 27.94 in

Available in white and black depending on the configuration. The minimalist design integrates well into modern interiors in Outremont or Brossard .

Guarantee and peace of mind

• 10-year compressor warranty

• 10-year parts warranty

• Extended warranty available

• AHA Air History Analyzer program for rapid diagnosis

At AirGreen, we also provide a structured after-sales service with available parts and technical support.

Why choose AirGreen for your SHARP CHU heat pump?

We regularly install this series through:

• Montreal

• Laval

• Longueuil

• North Shore

• South Shore

Our approach:

• Final clear submission before work begins

• Precise sizing

• Installation compliant with standards

• Full explanation of the functions

• Post-installation support

We favour equipment that is truly adapted to Quebec winters, and the SHARP CHU 18,000 BTU R32 -30°C wall-mounted heat pump is one of the models we recommend when winter performance is a priority.

Take action

Do you want to know if this heat pump is suitable for your property in Montreal, Laval, Longueuil, on the North Shore or the South Shore ?

Contact us today at AirGreen for:

• A personalized assessment

• A detailed submission

• Technical advice tailored to your home

• An estimate of available subsidies

Our team will guide you towards the HVAC solution best suited to your space.