ELIOS E-MULTI 3-Head Heat Pump + 18000 BTU Compressor | Laval

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A multi-zone solution designed for Quebec's climatic reality

At AirGreen Heat Pumps, Air Conditioning & Heating , we have been installing multi-zone systems for many years in single-family homes, duplexes, condos, and multi-unit buildings in Laval , Montreal , Longueuil , and on the North and South Shores. The ELIOS E-MULTI 3-head heat pump with an 18,000 BTU compressor is one of the solutions we recommend when the needs are clear: heating and cooling several rooms independently, without multiple outdoor units, while maintaining excellent energy efficiency in cold climates.

This multi-zone model is based on an EXHSA1832AN1 outdoor unit, compatible with up to 3 indoor units , allowing for precise temperature control in each zone. This type of configuration is particularly well-suited to homes where usage varies from room to room: bedrooms occupied at night, a home office used during the day, an open-plan living room, or an upper floor more exposed to heat gain.

A multi-zone design conceived for true flexibility

Three zones, three distinct uses

The very principle of a multi-zone HVAC system is to address concrete realities. In practice, we installed this ELIOS E-MULTI 3-head configuration in homes in Laval where:

• a master bedroom required very quiet operation at night

• An office required stable air conditioning during working hours.

• a shared living space had to absorb significant variations in thermal load.

Thanks to the compatible EWHMA06C2AS1, EWHMA09C2AS1, or EWHMA12C2AS1 indoor units, it is possible to precisely adapt the power to each room, without unnecessary oversizing. This approach improves comfort while limiting energy consumption.

Compatible with several types of indoor units

Another key strength of the ELIOS E-MULTI system is its versatility . Depending on the building's configuration, we can combine:

• wall units for the main rooms,

• Ducted units for more discreet spaces

• 1-way or 4-way cassettes when architectural integration is a priority.

This flexibility allows for mixed combinations without significant loss of performance, an important advantage in complex residential projects.

Energy efficiency and operation in cold climates

Efficient heating down to -25°C

A key factor in Quebec remains heating capacity in winter. The ELIOS E-MULTI 18,000 BTU heat pump is designed to operate efficiently down to -25°C , which corresponds to the realities encountered in Laval , on the North Shore and in Montérégie during periods of intense cold.

In our actual facilities, this translates to:

• stable heating without excessive reliance on a backup system

• a reduction in on/off cycles

• constant thermal comfort, even during prolonged cold spells.

Seasonal yield and certifications

This system is ENERGY STAR® certified , including Cold Climate certification, confirming its compliance with the strictest North American requirements. Its seasonal efficiency values ​​(SEER2, HSPF2, low-temperature COP) place this model among the balanced, multi-zone solutions for advanced residential use.

In projects carried out in Longueuil and Montreal , we observed a measurable decrease in electricity consumption compared to older split systems or direct electric heaters, particularly during the intermediate seasons.

R-454B refrigerant: a responsible technical choice

Why the R-454B is a game changer

The ELIOS E-MULTI heat pump uses R-454B refrigerant , a fluid with a lower global warming potential compared to previous generations. This technical choice reflects a gradual shift in the HVAC market towards more responsible solutions, without compromising performance.

For homeowners in Laval and elsewhere, this means:

• compliance with current and future environmental standards,

• improved durability of the installation,

• a system designed to last in an evolving regulatory context.

Integrated security and leak management

The e-Multi system incorporates refrigerant leak detection devices. In the event of a fault, the compressor stops operating and the indoor fan continues to run to reduce any potential refrigerant concentration in the room.

In our field experience, these devices enhance the peace of mind of occupants, particularly in multigenerational housing or condominiums.

Noise level and acoustic comfort

Silent interior, even during continuous operation

Indoor units compatible with this system can achieve noise levels as low as around 20 dB(A), depending on the model and fan speed. In bedrooms and offices, this aspect is often as important as thermal performance.

During a recent installation in Laval in a multi-storey house, the client specifically mentioned the notable difference between his old wall system and the new ELIOS E-MULTI configuration: the acoustic comfort became imperceptible at night, even with continuous heating.

Controlled outdoor unit

With an outdoor noise level of approximately 60 dB(A) , the outdoor unit remains within standards compatible with municipal regulations, a significant point in the dense residential areas of Montreal and Laval .

Professional setup: a determining factor

Actual sizing and configuration

A high-performing multi-zone system depends as much on its equipment as on its HVAC installation . At AirGreen, we place particular importance on:

• to the precise calculation of thermal loads,

• depending on the choice of pipe diameters,

• to the balancing of lengths between internal units.

We've observed that some poorly designed installations elsewhere lead to uneven performance between zones. With a well-thought-out ELIOS E-MULTI configuration, every room benefits from consistent, uncompromising comfort.

LogisVert subsidy and compliance

This model is eligible for the $1,620 LogisVert provincial grant , subject to applicable criteria. We systematically assist our clients in Laval , the South Shore , and the North Shore with preparing the required documents to simplify the process.

Warranty and durability

The ELIOS E-MULTI heat pump comes with a standard 10-year warranty on the compressor and parts , with additional options available as needed. This coverage reflects a commitment to durability, which is especially important for a multi-zone system designed to operate year-round.

Why choose AirGreen for your project in Laval?

Choosing AirGreen is not just about selecting equipment. It's about benefiting from:

• concrete field expertise in multi-zone HVAC installation ,

• from a team of experienced refrigeration technicians,

• a transparent, unsurprising approach,

• of a service adapted to the realities of Montreal , Laval , Longueuil , North Shore and South Shore .

We favour proven solutions, installed correctly, and truly adapted to Quebec buildings.

Conclusion and personalized support

The ELIOS E-MULTI 3-head + 18,000 BTU heat pump offers a balanced solution for homeowners seeking precise control, reliable energy efficiency in cold climates, and seamless integration into their living space. In Laval , this type of system is particularly well-suited to multi-story homes, targeted renovations, and true multi-zone heating and cooling needs.

For a detailed quote , a personalized analysis , or to discuss your HVAC system installation or replacement project, our team is available to assist you every step of the way.

Contact AirGreen today for professional advice and a solution perfectly suited to your residence.