Ductless Triple Zone Heat Pump Gree Multi GEN2 Compressor 42 000 BTU Montreal
The Gree Multi GEN2 42 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 35,600 BTU/h at −8 °C, heats down to −30 °C and qualifies for a $1,780 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
3 rooms, one outdoor unit.
Compared with the 86 multi-zone systems of 42,000 BTU we sell. Every number on this page carries its source.
The parts that make a multi-zone system.
Tap a part to learn more.
Outdoor unit
One compressor for the whole house. It supplies up to 5 heads and modulates from 8,870 to 38,200 BTU/h depending on what the rooms call for (NEEP).
Base pan heater
A heater keeps the outdoor unit’s base pan free of ice below 1 °C and during defrost (NEEP).
Refrigerant lines
One pair of lines per head.
Indoor heads
One head per room, each with its own remote and temperature. The combination is chosen in the “Zones” menu.
Control
Each zone is set separately, also from your phone.
Turn rooms on and off. Watch the power being shared.
One outdoor unit supplies every head: when several rooms call at once, they share its capacity. Pick an outdoor temperature.
Tell us your rooms. We tell you if this size is enough.
Pick the number of rooms and their size. The estimate targets a −15 °C day; it is a guide, the real calculation is done room by room at your home.
The whole series at a glance: find the box that fits you.
Each box is a product: the outdoor unit’s size, and the number of heads.
At −15 °C, it still delivers 77 % of its rated capacity.
Tap a temperature: certified capacity, efficiency and the cost of one hour of heating.
It slows down, it speeds up: the certified modulation range
Light bar: from minimum to maximum capacity. Dark mark: the rated value.
At every temperature, cheaper than baseboards.
Cost of one hour at full output, for the same heat delivered. Hydro-Québec Rate D, second tier: 11.142 ¢/kWh.
The official ratings, on the same scales as before.
SEER2, HSPF2 and EER2 come from the AHRI certification. The mark shows the median of the same-size multi-zone systems we sell.
A grant you can calculate, not guess.
The capacity at −8 °C comes from Hydro-Québec’s list of October 1, 2026. $50 per 1,000 BTU/h is the rate for ENERGY STAR heat pumps (guide v1.10).
Where it ranks among same-size multi-zone systems.
Compared with the 86 multi-zone systems of 42,000 BTU we sell, using the LogisVert list figures. Weaknesses too, said plainly.
Against three other brands in its class.
Same rated size, other manufacturers. Pick the opponent.
One multi-zone or several wall units? Both sides, honestly.
We compare both options on your floor plan during the estimate.
What to know before installing a multi-zone system.
Dimensions, wiring and lines, drawn. Then our six steps.
The outdoor unit, dimensioned
One circuit for the whole house
Published sound levels, on one scale.
We use the outdoor figure to choose where the unit goes.
What is particular about this machine.
Only facts published by ENERGY STAR, NEEP or the manufacturer.
Every number, and where it comes from.
Each line carries its source; a line with no published value is not shown.
The manufacturer’s documentation, as PDF.
Everything we have written about this system.
Installation and distribution of a Multi Zone heat pump with three (3) zones. Gree Multi GEN2 mini split with 42 000 BTU compressor, in Greater Montreal.
As AirGreen, a leading HVAC provider in Montréal, we pride ourselves on delivering the best in heating and cooling solutions across Greater Montréal, Laval, Longueuil, South Shore, and North Shore. One of the star products in our lineup is the Gree Multi Gen2, a triple zone heat pump boasting a robust 42,000 BTU compressor, and the ability to power up to five indoor units.
Advanced Inverter Technology for Superior Efficiency
The Gree Multi Gen2 utilizes G10 inverter technology that works to drive down power consumption while ensuring accurate temperature control and providing a quiet operating environment. This superior technology plays a significant role in the enhanced system performance of this multi-zone ductless mini-split, contributing to energy savings and increased comfort.
- G10 inverter technology: Achieving a fine balance between energy efficiency and exceptional performance.
- High energy efficiency: Certified with Energy Star® and reaching up to 21 SEER2 / 10 HSPF2, translating to significant energy savings.
Flexible Multi-Zone Heating and Cooling
The Gree Multi Gen2 stands out for its capability to provide heating and cooling solutions for up to five zones with a single outdoor unit. This flexibility makes it an ideal HVAC solution for both residential and commercial spaces requiring effective and energy-efficient temperature control.
- Versatile temperature control: Offers a cooling range of -30°C to 48°C and a heating range of -30°C to 24°C, assuring optimal comfort throughout the year, no matter the weather conditions.
- Wide range of indoor units: Five unique indoor unit options to choose from, each designed to meet specific temperature control needs.
Compact Design for Unobtrusive Installation
The Gree Multi Gen2 features a compact design that fits comfortably into your space, regardless of the layout. Along with the "small foot print" design, it operates at ultra-low sound levels, going unnoticed while providing optimal comfort.
- Quiet operation: Operates at a low noise level, down to 53 dB(A), to ensure minimal disruption.
- Intelligent defrost: Reduces energy loss and defrost time by only activating when necessary, instead of following a fixed timer.
User-Friendly Features for Enhanced Convenience
In addition to its primary heating and cooling functionalities, the Gree Multi Gen2 includes a host of additional features to further enhance user convenience and system efficiency:
- Self-diagnosis: Monitors the system’s performance to quickly identify potential issues, promoting efficient maintenance and longer system lifespan.
- WiFi capable: All indoor units have WiFi capabilities, allowing for remote control and monitoring from your smart devices.
- Automatic voltage adaptation: Operates consistently, even with voltage fluctuations, ensuring consistent performance and system longevity.
Ideal for Diverse Residential and Commercial Spaces
Designed for flexibility and efficiency, the Gree Multi Gen2 caters to a wide array of temperature control needs. It’s perfect for residential and commercial spaces, ensuring a comfortable environment in every season.
- Energy Star® Certified: This model is Energy Star® certified, highlighting its superior energy efficiency.
- Comprehensive Warranty: We offer a comprehensive 10-year warranty on parts and compressor, plus 6 years on labor straight from the distributor, for both residential and commercial applications, providing you peace of mind with your investment.
Invest in the Gree Multi Gen2 heat pump and experience the AirGreen difference. With our commitment to providing top-tier heating and cooling solutions, coupled with the impressive features and robust design of the Gree Multi Gen2, you’re guaranteed an unrivalled HVAC solution.
This series is eligible for numerous provincial subsidies, such as “Efficient Heat Pumps”, “Chauffez Vert” or “RénoClimat”, and federal, such as “Greener Homes”.
| Compressor Power | Heads Power (Zones/Inside Units) |
| 42 000 BTU | 9 000 BTU + 9 000 BTU + 9 000 BTU |
| 42 000 BTU |
9 000 BTU + 9 000 BTU + 12 000 BTU |
| 42 000 BTU |
9 000 BTU + 9 000 BTU + 18 000 BTU |
| 42 000 BTU | 9 000 BTU + 9 000 BTU + 24 000 BTU |
| 42 000 BTU | 9 000 BTU + 12 000 BTU + 12 000 BTU |
| 42 000 BTU | 9 000 BTU + 12 000 BTU + 18 000 BTU |
| 42 000 BTU | 9 000 BTU + 12 000 BTU + 24 000 BTU |
| 42 000 BTU | 9 000 BTU + 18 000 BTU + 18 000 BTU |
| 42 000 BTU | 12 000 BTU + 12 000 BTU + 12 000 BTU |
| 42 000 BTU | 12 000 BTU + 12 000 BTU + 18 000 BTU |
| 42 000 BTU | 12 000 BTU + 12 000 BTU + 24 000 BTU |
| 42 000 BTU | 12 000 BTU + 18 000 BTU + 18 000 BTU |
Warranty: 10 years on the compressor, 10 years on parts and 6 years on labor, straight from the distributor.
What people ask us about multi-zone systems.
Can I heat one room and cool another at the same time?
No. On a multi-zone system like this one, every head works in the same mode, heating or cooling. Each room still keeps its own set temperature.
What happens when every room calls for heat?
They share the outdoor unit’s capacity: 35,600 BTU/h at −8 °C, 32,400 at −15 °C and 24,500 at −30 °C.
How many heads can I connect?
Up to 5 on this outdoor unit. This product is configured for 3 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 12 combinations, from 9+9+9 to 12 + 18 + 18 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$1,780 according to Hydro-Québec’s list of October 1, 2026. The grant never exceeds 100 % of the cost before taxes; apply within 9 months of installation.
Is it ENERGY STAR certified?
Yes, ID 2414875.
Down to what temperature does it heat?
Down to −30 °C. At −30 °C, it still delivers 24,500 BTU/h with a COP of 1.5.
Is it noisy?
Indoors, the reference head goes down to 26 dB(A). Outdoors, 63 dB(A): we place the unit away from bedroom windows.
Why a multi-zone instead of several wall units?
One outdoor unit on the wall and one circuit. In return, the rooms share the capacity, and if the outdoor unit stops, every zone stops.
What does the warranty cover?
Our sheet lists 10 years on the compressor and 10 years on parts. AirGreen extended warranty: possible.
A multi-zone system is planned room by room. At your home.
We measure every room, draw the line route and choose the right head for each zone. The on-site estimate is free and the quote arrives within 24 h.