Elios ADD-ON Central Heat Pump | Cased Coil | 24000 BTU | -25°C

• BROCHURE : FRANÇAIS
• BROCHURE : ENGLISH

An ADD-ON central heat pump designed for the realities of Quebec and existing buildings

At AirGreen, we work daily with buildings that don't fit the ideal scenarios found in theoretical textbooks. These include Montreal homes with aging electric furnaces, Laval apartment buildings with irregular ductwork, South Shore buildings modified over decades, and light commercial buildings on the North Shore where every system outage has a direct impact on the occupants. It is precisely in this real-world context that the ADD-ON Elios 24,000 BTU -25°C central heat pump with coil and enclosure truly comes into its own.

This system was not designed as a simple alternative to traditional central heat pumps, but as a smart integration solution capable of modernizing an existing system without requiring a complete overhaul of the HVAC network. It is suitable for both homeowners who want to improve their comfort and those who are looking to reduce their energy costs while respecting the technical constraints of their building .

The ADD-ON concept: a pragmatic and effective approach

The ADD-ON principle is based on a simple idea, but often poorly executed in practice: adding a high-performance heat pump to an existing central system , without compromising overall reliability.

A mechanical integration designed for existing systems

The Elios coil with housing is sized to fit into standard plenums, which allows for:

• the existing electric furnace

• the main conduits

• the configurations already in place in the building

In several AirGreen projects carried out in Longueuil and Boucherville, this compatibility has made it possible to avoid invasive work, reduce installation times and limit overall costs for the client , while offering a clear improvement in energy efficiency.

A much more sophisticated operating logic

While many add-on systems offer only basic on/off control, the Elios stands out with its advanced two-way communication between the indoor and outdoor units. In practical terms, this means the system continuously adjusts its capacity based on:

• the actual demand for the building

• the outside temperature

• internal variations in thermal load

This modulated operation helps to avoid short cycles, which are responsible for discomfort, noise and premature wear.

Actual heating performance: stability down to -25°C

A heating capacity adapted to Quebec winters

With a nominal capacity of 24,000 BTU (2 tonnes) , this ADD-ON central heat pump is perfectly suited for medium-sized homes and small, well-insulated buildings. What truly sets it apart is its ability to maintain stable heat output down to -25°C , an essential requirement in Quebec.

In AirGreen installations on the North Shore, particularly in areas more exposed to wind and cold, we observed:

• a significant reduction in the use of supplementary electric heating

• a more stable indoor temperature, even during prolonged periods of cold.

• a better distribution of heat across all serviced areas

Consistent energy efficiency under real-world conditions

The COP, measured at around 2.6 at -8°C, allows the system to continue producing heat efficiently without a surge in electricity consumption. This point is often overlooked when choosing a central heat pump, but it has a direct impact on annual operating costs.

Central air conditioning: consistent comfort and precise control

In air conditioning mode, the ADD-ON Elios central heat pump offers a cooling capacity of 24,000 BTU , perfectly suited to residential and light commercial needs.

Improved air distribution

Thanks to a high airflow (CFM) and precise inverter modulation, the system enables:

• more uniform air conditioning

• fewer over-cooled or under-served areas

• a feeling of constant comfort, even during prolonged heat waves

In several single-family homes in Montreal, this configuration has corrected recurring problems of poorly cooled rooms, often caused by oversized or poorly balanced central systems.

R-454B refrigerant: regulatory compliance and built-in safety

The choice of R-454B is not insignificant. This new generation refrigerant, classified A2L , offers a reduced global warming potential , while meeting new Canadian regulatory requirements.

Active security integrated into the system

The ADD-ON Elios central heat pump is equipped with an integrated leak detection system which:

• continuously monitors the refrigeration circuit

• automatically stops the compressor in case of a malfunction

• maintains air circulation to prevent any accumulation

• sends a service alert

This approach reassures both residential owners and building managers, particularly in continuously occupied buildings.

Noise level: an often underestimated but essential criterion

The sound pressure level of approximately 60 dB(A) for the outdoor unit of the 24,000 BTU model represents a concrete advantage in the dense neighborhoods of Montreal and Laval.

Compared to traditional central systems, often perceived as intrusive, this heat pump:

• reduces nuisance for occupants

• limits neighborhood complaints

• more easily complies with municipal noise regulations

HVAC installation: where everything really happens

A high-performance central heat pump cannot deliver its full potential without a rigorous and well-thought-out installation . At AirGreen, our field experience has taught us that customer problems rarely stem from the equipment itself, but rather from overlooked technical details.

Common mistakes that we systematically avoid

• Undersized air returns limiting the actual flow rate

• Incorrect positioning of the coil in relation to the existing furnace

• Non-optimized pipe lengths

• Lack of balancing after commissioning

• Inadequate Inverter Modulation Settings

Each AirGreen project includes a complete analysis of the duct network , verification of static pressures, precise adjustment of parameters and real-world testing.

LogisVert subsidy: a concrete financial lever

The LogisVert provincial subsidy , currently set at $2,364 , makes this ADD-ON central heat pump even more attractive. In recent cases handled by AirGreen, this assistance:

• reduces the net installation cost

• accelerates return on investment

• encourages the replacement of energy-intensive electrical systems

In several cases, the savings generated cover a significant portion of the system's cost in just a few years.

Guarantee and long-term durability

The ADD-ON Elios central heat pump comes with a 10-year warranty on the compressor and parts , with the option to extend. For homeowners and property managers, this coverage is a key element in a long-term investment strategy, especially in the context of continuously rising energy costs.

Why entrust your project to AirGreen

Choosing an ADD-ON Elios 24,000 BTU -25°C central heat pump is a technological choice. Entrusting its installation to AirGreen is a strategic choice.

At AirGreen, we offer:

• concrete expertise in central ADD-ON installations

• an active presence in Montreal, Laval, Longueuil, North Shore and South Shore

• clear and confirmed prices before work begins

• certified and experienced refrigeration technicians

• $5 million liability insurance

Take the next step with AirGreen

If you are considering installing or replacing a central heating system, the ADD-ON Elios central heat pump offers a balanced, high-performance, and sustainable solution. Contact AirGreen for a precise assessment of your building and a proposal tailored to your specific needs, without unnecessary compromises.