Ameristar 4-Zone Wall Heat Pump | 30,000 BTU Compressor | Installation in Montreal, Laval, Longueuil, South Shore & North Shore
The Ameristar 30 000 multi-zone heat pump heats and cools 4 rooms with a single outdoor unit. it delivers 27,200 BTU/h at −8 °C, heats down to −30 °C and qualifies for a $3,264 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
4 rooms, one outdoor unit.
Compared with the 48 multi-zone systems of 30,000 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 4 heads and modulates from 8,200 to 31,860 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.
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 76 % 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. $120 per 1,000 BTU/h is the rate for ENERGY STAR cold-climate heat pumps (guide v1.10).
Where it ranks among same-size multi-zone systems.
Compared with the 48 multi-zone systems of 30,000 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.
Wall-Mounted 4-Zone Heat Pump: The Advanced Thermal Comfort Solution
A remarkable innovation in the HVAC field
The modern era has brought with it a plethora of innovations, and among them, AirGreen's Wall-Mounted 4-Zone Heat Pump stands out as an exceptionally efficient heating and cooling solution, tailored to the climatic demands of Montreal, Laval, Longueuil, as well as the North Shore and South Shore regions. This advanced technology, designed to provide optimal comfort in various living or working spaces, embodies excellence in the heating, ventilation, and air conditioning (HVAC) domain.
Technical capabilities and performance
The Wall-Mounted 4-Zone Heat Pump boasts an impressive cooling capacity of 30,000 BTU and an effective heating capacity down to outdoor temperatures of -30°C. These features make it an ideal choice for the varied climatic conditions of our region. With the ability to control up to four distinct zones, this heat pump offers unmatched flexibility and customization of thermal comfort.
- Dimensions and installation: The M4THM1930A14N model stands out for its optimized dimensions, facilitating its installation in various environments, whether residential or commercial.
- Attractive subsidies: Take advantage of attractive federal and provincial subsidies, amounting to up to $5,000, for an eco-efficient and economically advantageous installation.
- Energy Star® certification and WiFi: This system is not only high-performing; it's also recognized for its energy efficiency by Energy Star® and offers the possibility of WiFi connectivity for remote management.
Exclusive advantages
AirGreen's Wall-Mounted 4-Zone Heat Pump not only distinguishes itself through its technical performances but also through its advanced features, designed to enhance user experience:
- Efficient heating down to -30°C: Stay warm even during the extreme cold of the Quebec winter.
- Variable speed compressor: A technology that precisely adjusts the necessary power, thus reducing energy consumption.
- Coil coating for coastal regions: Additional protection ensuring the appliance's longevity in challenging climatic conditions.
- I-Feel remote control: An innovation allowing for more intuitive and accurate temperature adjustments based on the room's feel.
- 10-year warranty on all parts and 6 years on labor, straight from the distributor: A solid commitment to quality and customer satisfaction, ensuring unmatched peace of mind.
Why choose AirGreen?
Choosing AirGreen and its Wall-Mounted 4-Zone Heat Pump means selecting a reliable and expert partner in the HVAC field. We are committed to providing personalized solutions, meeting the specific needs of each client, with professional service and superior quality installation. Our team of certified experts is at your disposal to guide you through every step of the project, from system selection to its installation and maintenance.
Conclusion
The Wall-Mounted 4-Zone Heat Pump from AirGreen represents the ultimate in thermal comfort. With its exceptional heating and cooling capabilities, advanced features, and the support of a dedicated team of experts, it is a wise investment for anyone looking to improve their living comfort while optimizing energy consumption. Contact us today to find out how we can transform your living or working space into a haven of comfort and efficiency.
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: 27,200 BTU/h at −8 °C, 22,800 at −15 °C.
How many heads can I connect?
Up to 4 on this outdoor unit. This product is configured for 4 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 4 combinations, from 9+9+9+9 to 9+9+12+12 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$3,264 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, cold climate, ID 2415511. It also meets the ENERGY STAR Most Efficient criteria, according to the ENERGY STAR database.
Down to what temperature does it heat?
Down to −30 °C.
Is it noisy?
Indoors, the reference head goes down to 29 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.