Elios ADD-ON Central Heat Pump | Uncased Coil | 24,000 BTU | -30°C

• BROCHURE : FRANÇAIS
• BROCHURE : ENGLISH

A central solution designed for strategic replacements and existing systems

At AirGreen , we work daily on projects where the realities of buildings demand practical, rather than theoretical, solutions. In Montreal , Laval , Longueuil , and on the North and South Shores, a large portion of the building stock is already equipped with functional ductwork, often coupled with aging electric or hybrid heating systems. In this specific context, the ADD-ON Elios 24,000 BTU central heat pump with a coil and no cabinet represents a coherent, modern, and sustainable technical solution.

This model was not designed as a standardized, turnkey central system, but as an HVAC integration tool capable of fitting into an existing infrastructure without requiring major modifications. This is precisely the type of product we favor when the client's objective is clear: to improve comfort, reduce energy consumption, and modernize their system without rebuilding the entire mechanical room.

The Elios ADD-ON concept: a pragmatic approach to central HVAC

In practice, many homeowners hesitate to switch to a central heat pump due to fears:

• invasive work,

• due to a lack of mechanical space,

• unforeseen costs related to modifying the ducts,

• or an incompatibility with their current system.

The Elios ADD-ON concept was specifically designed to meet these constraints. The cabinetless A-coil installs directly into the airflow of the existing central system, complementing the equipment already in place. This approach allows for:

• to retain the existing fan and ductwork , provided they are compliant,

• to significantly reduce bulk ,

• to simplify HVAC installation ,

• to limit interruptions in use for occupants.

In the field, we have used this configuration in single-family homes from the 70s to the 90s, in duplexes and triplexes in Montreal , as well as in several multi-unit buildings on the South Shore , where mechanical space is often limited and already optimized.

A 24,000 BTU capacity perfectly suited to the Quebec climate

The 2-ton (24,000 BTU) version of the ADD-ON Elios central heat pump falls within a particularly versatile power range. It is suitable for:

• to well-insulated, medium-sized houses,

• than multi-story dwellings,

• or even to certain small businesses using an existing central network.

Heating performance in cold weather

This model is designed to provide reliable heating down to -30°C , a crucial factor in the Quebec context. Specifically:

• At -8°C , the heating power remains close to 19,700 BTU .

• At -15°C , it reaches approximately 21,000 BTU .

• Capacity modulation helps to avoid sudden and energy-intensive cycles.

In our facilities in Laval and Terrebonne , this stability translates into a constant indoor temperature, even during periods of intense cold, while limiting the use of auxiliary electric heating elements.

Summer air conditioning performance

In air conditioning mode, the 24,000 BTU capacity allows:

• efficient and even cooling

• improved humidity management,

• increased comfort in open-plan spaces.

This is an often underestimated but crucial point in modern residences where air volumes are significant and a simple on/off system quickly shows its limitations.

Advanced inverter technology and intelligent modulation

The inverter technology integrated into the ADD-ON Elios central heat pump plays a central role in its actual efficiency. Unlike traditional systems that only operate in on/off mode, the compressor continuously adjusts its speed according to the building's actual heating needs.

This modulation allows:

• a significant reduction in electricity consumption ,

• a more stable comfort , without sudden temperature variations,

• reduced mechanical wear , extending the system's lifespan.

In several projects carried out by AirGreen in Longueuil , we have observed a significant improvement in comfort in multi-storey houses, where temperature differences between the ground floor and the upper floor were previously problematic.

Two-way communication and humidity control

Another often overlooked aspect of central systems is humidity management . The ADD-ON Elios central heat pump uses two-way communication between the indoor and outdoor units, allowing for fine-tuning of the overall system operation.

The advantages are tangible:

• better control of humidity levels in summer ,

• an improved feeling of comfort even at the same temperature,

• a reduction of excessive condensation in the ducts.

This type of behavior is particularly appreciated in residences located near the river or in more humid areas of the South Shore .

Compact size, discreet integration and controlled noise level

The physical design of the system was also conceived to meet urban and residential constraints:

• compact outdoor unit with horizontal discharge

• smaller footprint compared to traditional vertical models,

• more discreet integration on restricted areas or in dense environments.

With a noise level of approximately 60 dB(A) for the 24,000 BTU version, the ADD-ON Elios central heat pump integrates seamlessly without disturbing the peace and quiet of residents or neighbors. In several Montreal projects, this feature has been a key factor for installations in backyards or in the immediate vicinity of living areas.

R-454B refrigerant and integrated safety features

The choice of R-454B meets current environmental requirements while offering excellent thermal performance. This next-generation refrigerant comes with integrated safety features, including:

• a leak detection sensor ,

• an automatic compressor shutdown in case of a malfunction,

• maintaining air circulation to prevent overheating,

• an alert facilitating a rapid intervention.

In practice, these mechanisms contribute to increased reliability and a reduction in unforeseen interventions, an essential aspect for both owners and property managers.

HVAC Installation: The Importance of Field Expertise

Installing an ADD-ON central heat pump without a cabinet is not something to be done on a whim. At AirGreen , each project is carefully considered:

• from a complete analysis of the conduit network ,

• from a check of air flow rates and static pressure ,

• precise control of the refrigeration piping (3/8 – 3/4) ,

• validation of the power supply and required protections.

We have often observed, when repairing poorly installed systems, that minor errors (poor balancing, undersized fan, incorrect coil integration) can drastically reduce the performance of an otherwise high-quality heat pump. This is precisely what our approach aims to prevent.

LogisVert subsidy and profitability logic

The ADD-ON Elios 24,000 BTU central heat pump is eligible for the LogisVert provincial grant , currently valued at $2,364 . This financial assistance plays a key role in the decision of many homeowners, particularly when replacing an existing system.

In several recent projects on the North Shore , this subsidy, combined with the observed energy savings, has made it possible to achieve a return on investment significantly faster than initially expected.

Long-term guarantee and peace of mind

The system benefits from solid coverage:

• 10 years on the compressor ,

• 10-year warranty on parts ,

• Additional warranty options depending on the customer's needs.

At AirGreen, we take the time to explain these guarantees clearly and transparently, so that every customer knows exactly what to expect in the long term.

Why entrust this project to AirGreen?

Choosing the ADD-ON Elios central heat pump is an excellent technical decision. Entrusting it to AirGreen ensures:

• an honest and comprehensive assessment of your existing installation,

• transparent pricing , communicated before the start of work,

• experienced refrigeration technicians specializing in central and hybrid systems,

• $5 million in liability insurance ,

• with recognized expertise in residential, commercial and multi-unit housing .

Our goal is not to sell a product, but to deliver a functional, consistent and sustainable HVAC system , perfectly suited to your building and lifestyle.

Take action now

If you are considering installing or replacing a high-performance central HVAC system that can withstand Quebec's harsh winters while providing optimal summer comfort, the ADD-ON Elios 24,000 BTU -30°C central heat pump deserves careful consideration.

Contact AirGreen Heat Pumps, Air Conditioning & Heating for a detailed technical assessment , a clear quote and concrete recommendations , tailored to your property in Montreal , Laval , Longueuil , on the North Shore or the South Shore .