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Elios ADD-ON Central Heat Pump | Cabinetless Coils | 30,000 BTU | -30°C

A central ADD-ON approach designed for real buildings in Quebec

At AirGreen, we work almost exclusively with existing buildings. Houses built between the 1960s and 2000, duplexes and triplexes in Montreal, residential buildings on the South Shore, local businesses in Laval: the reality on the ground is rarely that of an ideal new construction. The ADD-ON Elios Central Heat Pump | 30,000 BTU | -30°C , equipped with cabinetless coils , was designed precisely for these real-world situations, where energy performance needs to be improved without starting from scratch .

This model is not intended to unnecessarily replace a functional central system. It aims to optimize what already exists , by adding a central heat pump capable of handling most of the heating and cooling needs, even during the harsh winters of Montreal , Laval , Longueuil , the North Shore and the South Shore .

A true add-on solution, not an improvised adaptation.

Cabinetless coils: a strategic technical choice

Choosing a coil without a cabinet is never a trivial matter. In many of the projects we undertake, mechanical space is limited: low ceilings, narrow existing plenums, furnaces installed in hard-to-reach areas. Adding a bulky module with a cabinet can necessitate major, costly, and sometimes unnecessary modifications.

With the cabinetless internal coil (GUHMA36RBAS1) , integration is direct:

• Smooth insertion into the existing plenum

• Less duct reconstruction

• Reduction in construction time

• A cleaner and more discreet result

In several residences in Brossard , Repentigny and Terrebonne , this configuration allowed us to install a high-performance central heat pump where other solutions were simply unrealistic.

Perfectly suited to electric or hybrid systems

The Central-Elios series was developed for electric and hybrid ADD-ON applications. This means the heat pump can operate in conjunction with:

• An existing electric furnace

• A hybrid system with a backup power source

In practice, this allows the heat pump to be prioritized when outdoor conditions are favorable, then to intelligently switch to backup heating when needed. This type of approach is highly valued in single-family homes on the North Shore , where consistent comfort and cost control are priorities.

Heating performance down to -30°C: a requirement, not a bonus

Reliable central heating even in periods of intense cold

The Elios 30,000 BTU ADD-ON Central Heat Pump is designed to operate in severe winter conditions. Unlike standard central systems that become inefficient as soon as the temperature drops, this model maintains usable heating capacity down to -30°C .

In practice, this translates to:

• A marked reduction in the use of the backup system

• More consistent comfort throughout the house

• Less temperature variation between floors

In several projects carried out in Montreal North and Laval-des-Rapides , this ability to maintain the main heating even during cold spells was a determining factor in the choice of system.

Inverter technology and HEAT+: intelligent modulation

This model is based on a combination of advanced inverter technology and HEAT+ logic, enabling continuous power modulation. Unlike older centralized systems that operate in on/off cycles, the heat pump adjusts its capacity in real time.

The tangible benefits observed among our clients:

• More stable indoor temperature

• Reduction in peak electricity consumption

• Improved humidity control in air conditioning mode

• Reduction of noise and mechanical wear

This fine modulation is particularly appreciated in open-plan houses, which are very common on the South Shore .

Energy efficiency and controlled operating costs

Solid and consistent performance indicators

The Elios ADD-ON 30,000 BTU heat pump boasts efficiency values ​​that make it a serious central solution:

• SEER2 : 16.1

• HSPF2 : approximately 8.2

• High COP at low temperature

• ENERGY STAR® Certification

• ENERGY STAR® Cold Climate Certified

This data translates into real savings on the annual energy bill, particularly in buildings previously heated solely by electricity.

Eligibility for the LogisVert grant

This model is eligible for the $3,000 LogisVert provincial grant (updated November 26, 2025). In most of the projects we support, this financial assistance plays a key role in the final decision.

At AirGreen, we always integrate the subsidy from the project design stage, in order to offer a realistic, transparent and financially optimized solution.

R-454B refrigerant: modern efficiency and safety

The Elios heat pump uses R-454B , a new generation refrigerant known for:

• Its reduced environmental impact

• Its compatibility with current and future standards

• Its high thermal efficiency

The system also incorporates active leak detection , ensuring a safe shutdown of the compressor in case of a malfunction. This feature is particularly relevant in densely populated residential environments, such as certain areas of Montreal and Longueuil .

HVAC installation: what we systematically analyze

A high-performing central ADD-ON heat pump relies first and foremost on meticulous installation . Before each project, our teams verify:

• The condition and dimensions of existing conduits

• The required airflow (actual CFM)

• Electrical compatibility (220 V, MCA, MOP 30 A)

• The pipe run and length (3/8 – 3/4)

• The optimal location for the outdoor unit (62 dB(A))

We have often corrected poorly designed installations where the potential of the heat pump was never reached, simply due to a lack of prior analysis.

A coherent solution for well-targeted projects

The ADD-ON Elios 30,000 BTU Central Heat Pump is particularly relevant in the following cases:

• Buildings with an existing functional central system

• Owners wishing to reduce their reliance on supplementary heating

• Single-family homes and multi-unit dwellings

• Light commercial businesses requiring a stable and discreet solution

It is not a universal solution, but when well selected and well installed, it offers a rare balance between performance, integration and durability.

Why entrust this type of project to AirGreen?

At AirGreen, we don't sell a model; we design a complete HVAC solution . For this type of ADD-ON central heat pump, our added value lies in:

• Clear final offers before work begins

• Experienced refrigeration technicians

• $5 million liability insurance

• A thorough understanding of the actual limitations and strengths of the systems

It is this approach that allows our installations to deliver the expected performance over the long term, without unpleasant surprises.

Conclusion

The Elios ADD-ON Central Heat Pump | Cabinetless Coils | 30,000 BTU | -30°C is a reliable central heating solution designed to meet the real-world challenges of Quebec's housing stock. When properly sized and installed, it transforms an existing central system into a modern, efficient solution adapted to Quebec's winters.

To determine if this model is truly suitable for your building, contact AirGreen . We analyze your current system, your actual needs, and available subsidies to offer you a clear, structured, and technically sound solution.

Telephone : 514-316-2973
Email : sales@airgreen.ca