Elios Add-On Central Heat Pump | Cased Coil | 36,000 BTU | -30°C
SEER2 (Seasonal Air Conditioning Efficiency)
HSPF2 (Seasonal heating efficiency)
EER2 (Instantaneous efficiency in air conditioning)
COP at -8 °C (Heating energy efficiency)
CFM (Airflow)
A central ADD-ON solution designed for existing buildings and the climatic realities of Quebec
At AirGreen, we complete a large number of central HVAC ADD-ON projects each year in Montreal , Laval , Longueuil , on the North Shore and the South Shore . These projects all have one thing in common: existing buildings, often well-maintained, whose owners want to improve comfort, reduce energy costs and modernize their heating and cooling system without rebuilding the entire infrastructure .
The ADD-ON Elios 36,000 BTU Central Heat Pump with coil and cabinet fits perfectly into this logic. It was designed to integrate with existing central systems, whether electric or hybrid, while offering stable and measurable performance in severe winter conditions, down to -30°C .
This type of equipment is not intended for theoretical or idealized projects. It responds to very concrete constraints: limited mechanical spaces, sometimes imperfect existing ducts, varying needs depending on the floors or zones, and above all, a Quebec climate that puts the systems to the test for several months of the year.
High-performance central heating down to -30°C: a requirement, not a luxury
In our daily practice, we observe one very clear thing: the majority of winter discomforts stem from systems that lose their efficiency too quickly when the outside temperature drops below -15°C. The ADD-ON Elios central heat pump stands out precisely because of its ability to maintain stable performance even in extreme conditions .
With a rated output of 36,000 BTU , this unit maintains a high heating capacity at low temperatures:
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29,200 BTU at -8°C
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36,000 BTU at -15°C
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Certified operation down to -30°C
On the ground, this translates into an immediate difference. In several single-family homes in Laval and more exposed areas of the North Shore , we observed:
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A significant reduction in the use of auxiliary heating elements
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A more uniform indoor temperature between floors
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A more consistent feeling of comfort, without sudden fluctuations
The high COP at low temperature allows for more heat to be produced per kilowatt consumed, which remains a key criterion for owners mindful of their long-term energy costs.
An ADD-ON central heat pump designed for smart renovation
Unlike a complete core system replacement, an add-on configuration aims to optimize what already exists. It is precisely in this context that the Elios solution makes perfect sense.
It allows:
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To retain existing conduits when they are adequate.
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Adding a high-performance heat pump to an electric or hybrid system
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To limit invasive work in the home or business
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To reduce the overall duration of the construction project
At AirGreen, we favour this type of approach when it is technically sound, as it offers an excellent balance between performance, overall cost and sustainability .
The coil WITH cabinet: an often underestimated, but crucial element
Choosing a cased coil is far from trivial, especially in renovation projects. In many projects completed in Montreal and on the South Shore , this component makes all the difference from a mechanical and operational standpoint.
Specifically, the firm:
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Protects the coil and improves the overall lifespan
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Ensures a better seal for the air circuit
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Simplifies alignment with existing conduits
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Facilitates maintenance and future interventions
With internal dimensions of 21.02 × 21 × 24.06 inches , this configuration fits well into compact mechanical rooms, often found in homes built between the 1970s and 2000s.
Key technical data – 36,000 BTU model
For owners, property managers and professionals seeking a clear and factual overview, here are the key characteristics we systematically analyze before confirming an installation:
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Cooling capacity : 36,000 BTU
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Certified heating capacity : down to -30°C
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SEER2 : 15.8
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HSPF2 (cold climate) : 7.9
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Refrigerant : R-454B (A2L)
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Airflow (CFM) : suitable for residential and light commercial central air handling systems
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Refrigeration piping : 3/8" (liquid) – 3/4" (gas)
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Outdoor noise level : 64 dB(A)
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Power supply : 208–230 V / 1 phase
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ENERGY STAR® Cold Climate Certification : Yes
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AHRI Number : 216623812
This data only becomes truly valuable when contextualized by a properly sized and balanced installation.
Inverter technology and intelligent communication: more precise operation
The ADD-ON Elios central heat pump is based on advanced inverter technology , combined with two-way communication between the indoor and outdoor units. This architecture allows the system to continuously adjust its capacity, rather than operating in on/off cycles.
In practice, this means:
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A more stable indoor temperature
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Better humidity control
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A reduction in mechanical wear
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Quieter operation
In multi-unit residential buildings in Longueuil , this fine modulation has made it possible to improve the comfort of occupants while reducing complaints related to temperature variations.
Compliant with current standards and R-454B refrigerant
The choice of R-454B is not insignificant. This next-generation refrigerant meets current and future environmental standards, while offering excellent energy efficiency.
At AirGreen, we place particular importance on:
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Regulatory compliance
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The safety of the facilities
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The sustainability of technological choices
An ADD-ON system installed today must remain relevant and compliant for many years, both technically and regulatoryally.
LogisVert subsidy: a concrete financial advantage
At the time of installation, this ADD-ON central heat pump is eligible for a LogisVert grant of $3,504 . We always include this aspect in our support, as it directly influences the profitability of the project.
Our role is not limited to installation:
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Eligibility verification
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Compliant technical documentation
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Compliance with energy efficiency criteria
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Support until the grant is paid
Guarantee and long-term vision
The ADD-ON Elios central heat pump is offered with:
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10 years on the compressor
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10-year warranty on parts
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0-year warranty on labor , with additional warranty options
We take the time to explain these elements in detail because a clear understanding of the guarantees is an integral part of an informed decision.
Why AirGreen recommends this ADD-ON central heat pump
We recommend this model because it has proven itself in real-world conditions:
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harsh winters
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Existing buildings
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Specific mechanical constraints
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High expectations in terms of comfort and reliability
In Montreal , Laval , Longueuil , on the North Shore and the South Shore , the ADD-ON Elios 36,000 BTU central heat pump represents a coherent, sustainable and technically sound solution when installed by an experienced team.
Talk to AirGreen about your central HVAC ADD-ON project
Are you considering adding an ADD-ON central heat pump or want to know if your existing system can accommodate the Elios 36,000 BTU? At AirGreen, we analyze each project with rigor, transparency and method.
Contact us for a complete assessment, a clear proposal and an HVAC installation performed according to the best practices in the market, throughout Montreal , Laval , Longueuil , on the North Shore and the South Shore .
