FUJITSU CENTAURI R32 Electric Furnace | 1.5 Tons - 18000 BTU
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 high-performance central solution designed for Quebec's climate
At AirGreen, we install hundreds of HVAC systems in Montreal, Laval, Longueuil, on the North Shore and the South Shore every year, and some models truly stand out in the field. The FUJITSU CENTAURI R32 18,000 BTU electric furnace is one of those solutions we regularly recommend for demanding residential projects, especially for renovations or replacements of existing central systems.
This model, based on the AIRSTAGE Centauri platform, combines a multi-position air handling unit, compatibility with a central heat pump, and energy efficiency adapted to Quebec's harsh winters.
Understanding FUJITSU CENTAURI technology: much more than just a furnace
A multi-position air handling unit
Unlike a traditional electric furnace, the FUJITSU CENTAURI AMUH18KUAS is a flexible air handling unit that can be installed:
- In vertical flow (up or down)
- In horizontal configuration (left or right)
- In confined spaces (ceiling, basement, utility closet)
This flexibility is essential in many projects we undertake, particularly in plexes and homes in Montreal where mechanical space is limited.
Heating performance down to -21°C
One of the key features of this system is its ability to operate efficiently down to -21°C, without interruption.
In practice, this means:
- Less reliance on auxiliary heating
- Thermal stability even during cold snaps
- Reduced aggressive ON/OFF cycles
We recently installed this model in Boucherville in a poorly insulated single-family home. The result: the client noticed an immediate improvement in comfort, especially in the distant bedrooms.
Detailed technical data: what you really need to know
Main specifications
- Capacity: 18,000 BTU (1.5 tons)
- Indoor model: AMUH18KUAS
- Compatible outdoor unit: AOUH18KUAS1
- Refrigerant: R-32 (eco-friendly)
- ENERGY STAR certification (cold climate): Yes
- Indoor sound level: 33 to 44 dB
- Dehumidification: 2.37 pt/h
- Voltage: 220V
- Piping: 1/4 – 1/2
According to the technical sheet, the system can achieve a heating output of up to 24,000 BTU at maximum range, which exceeds its nominal capacity.
Advanced energy efficiency
- High SEER2 for cooling
- HSPF2 optimized for heating
- Efficient COP at low temperatures
Thanks to Inverter technology, the machine continuously adjusts its power, avoiding unnecessary energy losses.
In several projects in Laval, we observed a reduction in consumption of up to 25–30% compared to older electrical systems.
Why R-32 is a real game-changer
The choice of R-32 refrigerant is far from insignificant.
According to technical documentation, it offers:
- 68% reduction in global warming potential (GWP) compared to R-410A
- Better thermal efficiency
- Less gas volume required
For our Greater Montreal customers, this means:
- A more eco-friendly system
- Better eligibility for subsidies
- More stable performance in winter
HVAC installation: what we do differently at AirGreen
Comprehensive study before installation
Before each electric furnace installation in Montreal or on the South Shore, we analyze:
- The existing ductwork
- Static pressure
- The building's heat loss
- Available space for the unit
The FUJITSU CENTAURI allows for very clean integration into existing systems, which reduces modification costs.
Real-world installation example in Longueuil
Recent project:
- 2-story house
- Inefficient old furnace
- Existing ducts retained
Solution:
- Installation of a FUJITSU CENTAURI 18,000 BTU
- Addition of an optional WiFi module
- Optimization of horizontal airflow
Result:
- Uniform temperature throughout the house
- Noise reduced by over 40%
- LogisVert subsidy obtained
Common mistakes to avoid
1. Undersizing the system
An 18,000 BTU system may seem sufficient, but without precise thermal calculations, this can lead to:
- Poor performance in winter
- Excessive electricity consumption
- Discomfort in certain areas
2. Ignoring duct compatibility
Even though the CENTAURI is flexible, some networks require:
- Pressure adjustment
- Addition of registers
- Airflow optimization (CFM)
3. Neglecting auxiliary heating options
The system allows for the addition of heating kits from 2 kW to 16 kW as needed.
At AirGreen, we configure these options based on the building, never as a standard.
Connectivity, control, and smart integration
The FUJITSU CENTAURI offers several advanced options:
- Optional WiFi (mobile application)
- Compatibility with 24V thermostats
- BACnet / Modbus integration for smart buildings
- Touchscreen wall controllers available
These features are particularly useful in:
- Multi-unit buildings
- Light commercial projects
- Smart homes
Sound level and daily comfort
With an indoor sound level as low as 30–33 dB in silent mode, this system is practically imperceptible.
We have installed this model in several condos in Montreal where noise is a major concern. The feedback is always the same: total silence during normal operation.
Subsidies and profitability
This model is eligible for the Hydro-Québec LogisVert subsidy, with an amount of approximately $1932 (2025 update).
Combined with its energy efficiency:
- Accelerated return on investment
- Reduced electricity costs
- Increased property value
Why choose AirGreen for your HVAC installation
At AirGreen, we do more than just sell a product:
- Certified professional RBQ installation
- Civil liability insurance of $5M
- Experienced team (residential, commercial, multi-unit)
- Fast service in Montreal, Laval, Longueuil, North Shore, and South Shore
Each project is custom-treated, with a rigorous and transparent technical approach.
Conclusion: a strategic choice for comfort and efficiency
The FUJITSU CENTAURI R32 18,000 BTU electric furnace is a modern, high-performance central solution adapted to Quebec's climatic realities. Its installation flexibility, energy efficiency, and reliability make it an excellent choice for demanding homeowners.
Contact AirGreen today
For a personalized quote, a comprehensive analysis of your project, or advice on the best HVAC options for your property, contact our team now. At AirGreen, we support you every step of the way with precision and expertise.