NOVAIR Ultra Heat Wall-Mounted Heat Pump/Air Conditioner (-25°C) | 18,000 BTU

• NOVAIR ULTRA HEAT: BROCHURE
• NOVAIR HYPER HEAT: BROCHURE

Stable comfort down to -25°C for homes in Greater Montreal

The NOVAIR Ultra Heat 18,000 BTU wall-mounted heat pump is aimed at homeowners, condo owners and plex owners in Greater Montreal , Laval , Longueuil , the North Shore and the South Shore who want a reliable, efficient heating and cooling system adapted to the Quebec climate.

While many devices simply reduce their output gradually as the temperature drops, this Ultra Heat wall-mounted heat pump is designed to maintain efficient heating capacity down to -25°C , while preserving stable and consistent comfort throughout the home. For homeowners looking to reduce their reliance on electric or oil baseboard heaters, this is a concrete and tangible solution.

A wall-mounted heat pump designed for Quebec winters

The Novair Ultra Heat series is developed specifically for northern climates. The 18,000 BTU model incorporates several technical features that make a real difference in the field:

• Compressor crankcase heater : it maintains the oil at the correct temperature and protects the compressor when the outdoor unit is exposed to sustained cold. This reduces mechanical wear and contributes to the equipment's longevity.

• Factory-installed heated condensate tray : essential to prevent ice buildup under the outdoor unit during defrost cycles. Controlled water drainage reduces the risk of blockages and noise caused by ice.

• Optimized defrosting algorithms : the unit limits the duration of defrost cycles and only triggers them when necessary, maximizing active heating time and the feeling of comfort inside.

• Corrosion-protected components : anti-corrosion treatment on the heat exchangers and structure, to resist humidity, de-icing salt and frequent freeze/thaw cycles on the Island of Montreal and in the suburbs.

These combined features allow the Novair heat pump to continue heating efficiently in conditions where standard units often switch to extended defrost mode or simply let the auxiliary heater take over.

Energy efficiency: savings on your bills, comfort all year round

The NOVAIR Ultra Heat 18,000 BTU provides both cooling in summer and heating in winter , with an energy-efficient design. This capacity includes:

• a SEER of approximately 24 , which translates to excellent air conditioning efficiency;

• an HSPF of approximately 11.6 , making it an efficient system for seasonal heating;

• a COP of approximately 3.7 in heating mode under moderate conditions, meaning that for 1 kWh of electricity consumed, the system provides up to almost 4 kWh of heat.

In practice, this translates to:

• a significant reduction in heating costs compared to electric baseboard heaters;

• efficient air conditioning in the summer, without having to add a separate unit;

• better controlled consumption, especially during the mid-season periods when the heat pump is working within its optimal efficiency range.

For a homeowner in Montreal , Laval , Longueuil , on the North Shore or the South Shore , the combination of a long winter and an increasingly hot summer makes this type of system particularly attractive: the same equipment is used twelve months a year.

LogisVert grant and AHRI compliance

The pair of units:

• Interior: 2LEA18UUSK-I

• Exterior: LEA18SZ25SK-O

is associated with AHRI number 211709679 , an essential element for grant applications and technical documentation. This model qualifies for a $745 LogisVert provincial grant (updated November 26, 2025) , subject to building eligibility and compliance with program criteria.

At AirGreen , we provide:

• the AHRI certificate required in several programs;

• the technical information needed for files with Hydro-Québec or other bodies;

• support in administrative procedures, so that the "paperwork" part does not become an obstacle to your project.

Acoustic comfort and indoor air quality

A high-performance wall-mounted heat pump shouldn't just be efficient; it should also be unobtrusive in your daily life. The Novair Ultra Heat 18,000 BTU was designed for quiet operation .

• The internal noise level can go down to approximately 24.5 dB(A) at low speed, which corresponds to the ambiance of a quiet bedroom;

• Multiple fan speeds to adapt the airflow to the use: stronger when the room is occupied, gentler at night;

• Motorized vertical and horizontal louvers allow for better air direction, avoid direct drafts on the sofa or dining table, and achieve a more uniform temperature distribution.

Regarding air quality, the system incorporates:

• easily accessible filters , which can be removed in seconds to be vacuumed or washed;

• a bio-type filtration aimed at reducing dust and suspended particles;

• a continuous and modulated airflow, which helps to limit areas of air stagnation in the room.

Smart features and WiFi control

The integrated Wi-Fi connection is one of the features appreciated by owners. It allows:

• to adjust the temperature remotely (practical for a second home, a cottage or an office);

• to check if the system is functioning properly during a cold snap;

• to program heating or cooling time slots according to your routine, to optimize consumption.

Several clients, for example, use the following programming:

• economy mode during the day when the house is empty;

• gradual rise in temperature in the late afternoon;

• slight decrease during the night, while maintaining comfort in the rooms.

These functions help to truly take advantage of the heat pump's performance, rather than running in "full power" mode permanently.

Sizing: For what types of housing is the 18,000 BTU suitable?

The NOVAIR Ultra Heat 18,000 BTU wall-mounted heat pump is particularly suited to the following situations (to be confirmed during the on-site estimate):

• main floor of a well-insulated single-family home, with open-plan living/dining/kitchen area;

• large condo or apartment of approximately 800 to 1,200 sq ft, with relatively open air circulation;

• small commercial premises (professional office, clinic, shop) where both stable comfort and control of heating and air conditioning costs are sought.

During a free estimate visit , an AirGreen advisor takes the time to assess:

• the actual area to be served;

• the layout of the rooms and the air circulation;

• the orientation of the building and the level of sunlight;

• the current insulation (windows, walls, roof);

• the systems present (baseboard heaters, furnace, forced air).

The goal is to avoid the two classic pitfalls: an oversized system (which starts and stops too often, with less comfortable regulation) or an undersized system (which struggles to maintain the temperature during very cold weather).

Example of an installation in Rosemont and concrete results

For example, a family in Rosemont lived in a ground-floor apartment of approximately 1,000 square feet, heated solely by electric baseboard heaters. Despite significant energy consumption, some rooms remained cool in winter, especially near the north-facing windows.

After analysis, the AirGreen team recommended and installed a NOVAIR Ultra Heat 18,000 BTU wall-mounted heat pump in the living room, positioned to vent towards the hallway leading to the bedrooms. The outdoor unit was mounted on a wall bracket, with:

• anti-vibration cushions to reduce noise transmission to the masonry;

• a drain outlet designed to prevent the formation of annoying ice on the sidewalk;

• an optimized pipe passage to remain discreet on the facade.

After the first full season:

• The family noted a significant reduction in their heating bill compared to the previous year, despite a harsh winter;

• the temperature became more uniform throughout the dwelling;

• They enjoyed a new level of summer comfort , with efficient air conditioning, without having to install window air conditioners.

Many installations carried out by AirGreen in Laval , Boucherville , Terrebonne , Repentigny , as well as in several boroughs of Montreal, show similar results: better control of temperature and energy costs.

AirGreen professional HVAC installation: reliability, warranties and after-sales service

The quality of an HVAC installation directly impacts the performance and lifespan of the heat pump. A good product that is poorly installed can consume more energy, break down prematurely, or provide disappointing comfort. That's why AirGreen pays close attention to every stage of the project, from the initial phone call to final commissioning.

Electrical specifications and refrigeration connections

From an electrical standpoint, the NOVAIR Ultra Heat 18,000 BTU requires:

• a voltage of 220 V ;

• a minimum circuit amperage (MCA) of 17 A ;

• a maximum protection (MOP) of 25 A.

In practical terms, this means that a dedicated circuit must be installed, with a properly sized circuit breaker and wiring that complies with the Quebec Electrical Code. AirGreen coordinates this aspect with a qualified electrician when necessary to ensure the installation's compliance and safety.

On the refrigeration side, the 1/4" - 1/2" piping allows for great flexibility in routing, with:

• a maximum length of approximately 98 feet , which leaves considerable leeway to find a suitable location for the outdoor unit;

• an allowable elevation difference of approximately 66 feet , permitting configurations where the outdoor unit is lower or higher than the indoor unit (backyard, balcony, roof, etc.).

The commissioning process always includes:

• a rigorous vacuuming of the refrigeration line;

• a leak test ;

• validation of operating pressures ;

• checking the correct defrosting sequence and hot/cold modes.

Typical installation process with AirGreen

The standard process for a project with AirGreen generally follows these steps:

1. Initial contact and pre-qualification
   Discussion of needs, building type, availability of subsidies and general budget outlines.

2. On-site valuation visit (100% free)
   An advisor will visit to verify the configuration, take measurements, assess possible locations for the units, analyze the electrical panel and answer technical questions.

3. Detailed offer and transparent pricing
   A written quote will be provided, including the supply of the Novair Ultra Heat 18,000 BTU heat pump , complete installation, accessories (brackets, duct covers, condensate pump if needed), and labor. No surprises: everything is clearly stated before work begins.

4. Planning and installation
   The installation date will be scheduled according to your availability. On the appointed day, the technicians will:

   • protect the work areas;

   • install the indoor and outdoor units;

   • install, insulate and seal the refrigeration lines;

   • set up the power supply and communication connections;

   • perform the complete commissioning.

5. Explanations for the customer and usage tips
   Once the installation is complete, the technicians take the time to explain how it works, the thermostat modes, the preferred settings, basic maintenance (cleaning the filters) and the precautions to take during periods of extreme cold.

6. Payment only at the end
   AirGreen's philosophy is simple: no deposit required . Payment is made once the work is completed and the equipment is operational.

Warranty, spare parts and after-sales service

In addition to the manufacturer's warranty, which can be up to 10 years on parts and labor when an extended warranty program is registered, AirGreen emphasizes the availability of parts in Canada.

Novair parts are stored in several warehouses across the country, which allows for:

• to limit waiting times in case of breakage;

• to facilitate service interventions;

• to ensure continuity of operation even when the equipment is several years old.

In case of a problem, the customer should contact AirGreen:

• an initial diagnosis is carried out (often by telephone or video conference to check the settings);

• If necessary, a certified refrigeration technician is dispatched to the site;

• AirGreen handles the coordination with the distributor and warranty manager when the repair is eligible.

HVAC Maintenance: Keeping Your Heat Pump Performing at its Best

To maintain the performance of the NOVAIR Ultra Heat 18,000 BTU wall-mounted heat pump over time, regular maintenance is strongly recommended. This includes:

• frequent cleaning of internal filters (ideally once a month during periods of heavy use);

• periodic inspection of the outdoor unit (drain clearance, absence of obstructions, presence of ice);

• a complete professional maintenance at regular intervals (turbine cleaning, exchanger check, thorough functional tests).

AirGreen offers maintenance programs tailored to the needs of residential and commercial customers, in order to avoid gradual drops in performance and breakdowns during peak season.

Why choose AirGreen for your Novair Ultra Heat 18,000 BTU project?

By entrusting your project to AirGreen, you will benefit from:

• a strong local presence with offices and showrooms in Montreal and on the South Shore ;

• free on-site estimates throughout Greater Montreal;

• transparent pricing , communicated before the work begins;

• of experienced refrigeration technicians , who know the realities of Quebec winters and the requirements of buildings in the region;

• a turnkey approach integrating advice, installation, subsidies and after-sales service.

Whether you are an owner-occupier, building manager or small business owner, the goal remains the same: to implement a reliable, comfortable and sustainable HVAC system that allows you to better control your energy costs.

Next Step!

If you are considering installing a NOVAIR Ultra Heat (-25°C) | 18,000 BTU Wall Mounted Heat Pump Air Conditioner in your home or business in Montreal , Laval , Longueuil , on the North Shore or South Shore , contact AirGreen for a 100% free on-site estimate .

An advisor will take the time to analyze your situation, explain the different possible options and provide you with a clear offer, including available subsidies and guarantees.

Call us, write to us or fill out an online request: the AirGreen team will support you every step of the way, from the first question to the first winter heated by your new Novair Ultra Heat wall-mounted heat pump .