Ductless Five Zone Heat Pump Gree Multi GEN2 Compressor 42 000 BTU Montreal
The Gree Multi GEN2 42 000 multi-zone heat pump heats and cools 5 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.
5 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 five (5) zones. Gree Multi GEN2 mini split with 42 000 BTU compressor, in Greater Montreal.
We are AirGreen, your trusted HVAC company in Montréal. We are committed to providing top-tier HVAC solutions across Greater Montréal, Laval, Longueuil, South Shore, and North Shore. We offer an extensive range of heat pumps, and our Multi Zone Heat Pumps are among the best in the market.
One of our standout offerings is the Gree Multi Gen2 heat pump. This innovative system boasts a powerful 42,000 BTU compressor and is capable of accommodating two to five indoor units, making it a versatile solution for all your heating and cooling needs.
Advanced Technology for Superior Efficiency
The Gree Multi Gen2 heat pump is equipped with the cutting-edge G10 inverter technology. This advanced feature enables the heat pump to operate with ultra-low noise levels, precise temperature control, and superior energy efficiency, resulting in significant savings in power consumption.
High Flexibility for Ultimate Comfort
With the capacity to heat and cool up to five zones using a single outdoor unit, the Gree Multi Gen2 heat pump offers unparalleled flexibility. This high adaptability makes it an ideal choice for both residential and commercial spaces. It offers five unique indoor unit options, allowing you to customize the system according to your specific needs.
Intelligent Features for User Convenience
The Gree Multi Gen2 heat pump is designed with a range of intelligent features aimed at enhancing user convenience:
- Self-diagnosis: This feature allows for early detection and resolution of any potential issues.
- Intelligent Defrost: This feature reduces energy loss and defrost time by defrosting only when necessary instead of on a set schedule.
- Wi-Fi Capability: All indoor units are Wi-Fi enabled, giving you the freedom to control the system remotely.
Compact Design for Seamless Integration
With its small “Foot Print” design, the Gree Multi Gen2 heat pump can be discreetly integrated into any environment. Despite its compact size, it offers powerful performance and quiet operation, ensuring your comfort without disturbing your peace.
Reliable Performance and Eco-Friendly Operation
This heat pump delivers robust performance while minimizing environmental impact:
- Energy Star® Certified: This certification attests to the heat pump's superior energy efficiency.
- Environmentally Friendly: The system uses the eco-friendly R410A refrigerant.
Warranty and Support
AirGreen is not just about selling HVAC solutions; we are committed to providing continuous support to our clients. With a full 10-year warranty on parts and the compressor and 6 years on labor, straight from the distributor, we offer peace of mind with every purchase. Whether you're using the Gree Multi Gen2 heat pump for residential or commercial purposes, we've got you covered.
Choose the Gree Multi Gen2 heat pump and experience the AirGreen difference – an HVAC solution that offers high performance, superior energy efficiency, and a long lifespan. With AirGreen, you're not just choosing an HVAC system; you're choosing a partner dedicated to enhancing your comfort and wellbeing all year round.
This series is eligible for numerous provincial subsidies, such as “Efficient Heat Pumps”, “Chauffez Vert” or “RénoClimat”, and federal, such as “Greener Homes”.
Some Features:
- G10 inverter technology
- High efficiency, up to 22 SEER/ 11.5 HSPF
- Outdoor unit sound level as low as 56 dB(A)
- Cooling temperature range: -18°C to 48°C
- Heating down to -20°C
- Energy-efficient R410A refrigerant
- Self-diagnosis (very useful for after-sales service)
- Multiple fan speeds
- Louver control
- Polymer washable air filters
- Remote and wired control options
- Automatic voltage adaptation
- WiFi
- Comes with a 10-year parts and 10-year compressor warranty.
- 6-year labor warranty included, straight from the distributor, extendable up to 10 years as an option.
| Compressor Power | Heads Power (Zones/Inside Units) |
| 42 000 BTU | 9 000 BTU + 9 000 BTU + 9 000 BTU + 9 000 BTU + 9 000 BTU |
| 42 000 BTU |
9 000 BTU + 9 000 BTU + 9 000 BTU + 9 000 BTU + 12 000 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 5 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 2 combinations, from 9+9+9+9+9 to 9+9+9+9+12 (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: available.
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.