Elios ADD-ON Central Heat Pump | Cased Coil | 36000 BTU | -25°C

• BROCHURE : FRANÇAIS
• BROCHURE : ENGLISH

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

At AirGreen , we are regularly called upon to intervene in buildings already equipped with a functional central system, but which has become energy-inefficient, partially ineffective, or limited to heating only. The ADD-ON Elios 36,000 BTU -25°C Central Heat Pump with coils and casing was specifically developed to address this type of situation, which is very common in Montreal , Laval , Longueuil , and on the North and South Shores .

This is not a complete system replacement, but rather a smart integration with an existing installation: an electric furnace, hybrid system, or forced-air heating system that is still in good working order. This add-on approach significantly improves comfort and energy efficiency, while minimizing major work and downtime.

In practice, this means that the building retains its central infrastructure, but now benefits from a high-performance heat pump , capable of providing heating and air conditioning for a large part of the year, even in harsh winter conditions.

The ADD-ON principle explained concretely, without approximations

An ADD-ON central heat pump functions as an add-on module that is inserted directly into the existing air circuit. The Elios coil with its housing is installed upstream or downstream of the central system, depending on the configuration, and acts as a primary heat exchanger when external conditions permit.

In projects carried out by AirGreen in Boucherville , Terrebonne , and Laval-Ouest , this configuration allows for:

• to prioritize the heat pump for heating and air conditioning,

• to maintain a reliable backup heating system for extreme periods,

• to reduce overall electricity consumption,

• and to optimize the use of an already well-sized network of conduits.

This is a solution particularly appreciated by owners who wish to modernize their HVAC system without starting from scratch , while maintaining energy flexibility.

A 36,000 BTU capacity suitable for Quebec buildings

With a rated capacity of 36,000 BTU (3 tonnes) , this Elios ADD-ON central heat pump is suitable for medium to large single-family homes, duplexes, triplexes, and some light commercial spaces. However, at AirGreen, we always emphasize one fundamental point: power alone is not enough .

Each project begins with a complete analysis:

• actual surface area

• building insulation,

• orientation,

• airtightness,

• quality and configuration of the ducts.

In several installations on the North Shore , we have observed that this Elios model offers excellent thermal stability when properly sized. The system thus avoids short cycling, improves continuous comfort, and extends the lifespan of the components.

Reliable heating down to -25°C: a non-negotiable requirement in Quebec

One of the major advantages of this Elios ADD-ON central heat pump is its heating capability down to -25°C , a crucial factor in our climate. Unlike more basic systems, it maintains useful heat output at temperatures where many traditional heat pumps reach their limits.

In real-world conditions, this translates to:

• a significant reduction in the use of auxiliary heating ,

• a more stable indoor temperature

• fewer sudden variations during cold waves.

In residences in Longueuil and Montreal North , we observed that the system maintained excellent comfort even on very cold nights, particularly when the ADD-ON integration was well calibrated with the existing system.

Energy efficiency and COP in real-world conditions

With a high COP at low temperatures , the Elios heat pump efficiently converts electrical energy into useful heat. In practical terms, this means:

• fewer kilowatt-hours consumed for the same amount of heat.

• a more predictable energy bill

• better long-term profitability.

At AirGreen, we always analyze the customer's consumption habits in order to fully exploit this potential for efficiency, in particular through appropriate programming and a well-defined switching logic between heat pump and auxiliary heating.

A consistent and comfortable central air conditioning system

During the summer months, the 36,000 BTU cooling capacity effectively cools the entire building via the existing ductwork. Unlike some poorly balanced central systems, the Elios coil with its housing ensures uniform distribution of cool air.

In several projects completed in Montreal East and Saint-Hubert , clients noted:

• a marked decrease in temperature differences between floors,

• improved humidity management,

• a more consistent feeling of comfort, even during prolonged heat waves.

This homogeneity is directly linked to the quality of the installation, the adjustment of the air flow rate and the correct integration of the coil into the existing network.

R-454B refrigerant: a choice aligned with the future

The Elios ADD-ON Central Heat Pump operates with R-454B refrigerant , a next-generation gas that meets current environmental standards. This choice reflects a gradual transition towards more responsible solutions, while maintaining a high level of performance.

At AirGreen, our teams are already fully trained to work with A2L refrigerants, including:

• specific security procedures,

• leak detection,

• and the optimization of refrigerant charges.

For the client, this represents a compliant, durable and long-term oriented installation .

Technical installation: the key role of the coil with housing

A format designed for existing mechanical spaces

The coil WITH housing offers a real advantage in renovation or ADD-ON integration projects. Its compact dimensions facilitate installation in the often cramped mechanical rooms common in homes in Montreal and the South Shore .

Before any installation, AirGreen systematically checks:

• the compatibility of the plenum,

• the condition of the pipes,

• the available electrical capacity (220V),

• the necessary protections (MOP 30A),

• and compliance with RBQ requirements.

This rigor helps to avoid improvised adjustments and guarantees optimal operation from the moment of commissioning.

Controlled noise level for pleasant everyday use

With an outdoor noise level of approximately 63 dB(A) , this ADD-ON Elios central heat pump remains quiet for a system of this capacity. In dense residential environments, this criterion is essential to preserve acoustic comfort for both occupants and neighbors.

Reliability, guarantees and peace of mind

The 10-year warranty on the compressor and parts demonstrates the manufacturer's confidence in the equipment's durability. At AirGreen, we always advise our customers on additional warranty options when the intended use is intensive or critical.

Beyond the warranty, reliability also depends on:

• the quality of the installation,

• compliance with operating parameters,

• and appropriate HVAC maintenance.

Why AirGreen Makes a Difference on Add-on Projects

Installing an ADD-ON central heat pump requires expertise that goes far beyond simply installing equipment. Each project involves:

• a thorough understanding of the existing system,

• a complete thermal analysis,

• precise integration planning.

At AirGreen , we have completed numerous ADD-ON projects in Montreal , Laval , Longueuil , the North Shore , and the South Shore , in both residential and light commercial sectors. Our approach is based on:

• transparent pricing ,

• experienced refrigeration technicians ,

• $5 million in liability insurance ,

• and technical support from start to finish.

Common mistakes observed and how we avoid them

Over the years, we have observed several recurring errors in ADD-ON projects:

• installing a heat pump without checking the actual condition of the ducts,

• poorly managing the operating logic with the existing heating system,

• neglecting airflow balancing,

• or underestimate the electrical needs.

These errors often lead to disappointing performance. At AirGreen, our method is specifically designed to anticipate and correct these issues before installation , to guarantee a lasting and consistent result.

A central solution truly adapted to Quebec

The Elios 36,000 BTU -25°C ADD-ON Central Heat Pump with coils and casing is a particularly relevant solution for Quebec buildings already equipped with a central system. It combines:

• winter performance,

• efficient air conditioning

• flexible integration,

• and cost control.

When properly installed, it becomes a major lever for improving the comfort and energy performance of the building.

Take the next step with AirGreen

If you're considering installing an ADD-ON central heat pump or want to verify the compatibility of your current system, AirGreen is your trusted partner. Our HVAC installation specialists will guide you with thoroughness and transparency throughout Montreal , Laval , Longueuil , the North Shore , and the South Shore .

Contact us today for a personalized analysis and a clear, no-surprises quote.