Ameristar 4-Zone Wall Heat Pump | 36,000 BTU Compressor | Installation in Montreal, Laval, Longueuil, South Shore & North Shore
The Ameristar 36 000 multi-zone heat pump heats and cools 4 rooms with a single outdoor unit. it delivers 30,800 BTU/h at −8 °C, heats down to −30 °C and qualifies for a $3,696 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
4 rooms, one outdoor unit.
Compared with the 141 multi-zone systems of 36,000 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 8,870 to 37,720 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 90 % 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 141 multi-zone systems of 36,000 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 Ameristar Heat Pump | 36,000 BTU Compressor | Installation in Montreal, Laval, Longueuil, South Shore & North Shore
Your Complete Guide to the Ameristar Wall-Mounted 4-Zone Heat Pump
Introduction to the Wall-Mounted 4-Zone Heat Pump
In today's world, where home comfort and energy efficiency are at the forefront of homeowners' concerns, the Ameristar wall-mounted 4-zone heat pump emerges as an innovative and high-performing solution. With its exceptional cooling and heating capacity, this unit is designed to offer optimal comfort in various areas of your home, while reducing your energy footprint.
Unique Technical Features
- High Performance Capacity: With a cooling capacity of 36,000 BTU and an effective heating capacity up to -30°C, the Ameristar heat pump ensures year-round comfort in every room of your house.
- Maximum Flexibility: Capable of handling up to 5 zones with a standard 4-zone configuration, this system adapts to your specific needs, allowing for personalized and efficient temperature management.
- Energy Efficiency: Certified Energy Star®, with an impressive efficiency rating of 21.0 SEER, this heat pump guarantees significant energy savings, translating into notable reductions on your electricity bills.
- Modern Connectivity: The WiFi option allows you to control and adjust your heat pump's settings remotely, offering increased convenience and efficiency.
Advantages and Benefits
- Customized Comfort: Thanks to its cutting-edge technology, the Ameristar heat pump offers even distribution of warm or cool air in each zone, eliminating hot or cold spots for consistent comfort.
- Durability and Reliability: The variable-speed compressor, coastal coil coating, and I-Feel remote are designed for durable and reliable performance, ensuring peace of mind for many years.
- Energy Savings and Subsidies: In addition to being energy-efficient, this heat pump qualifies for federal and provincial subsidies, further reducing the initial cost of your investment.
Why Choose AirGreen for Your Installation?
- Local Expertise: Specializing in HVAC services in Montreal, Laval, Longueuil, as well as the South Shore and North Shore, we are intimately familiar with the climate challenges of these regions and offer tailored solutions.
- Professional Installation: Our team of certified technicians guarantees a flawless installation of your 4-zone wall-mounted heat pump, with meticulous attention to detail and strict adherence to safety standards.
- Support and Warranty: At AirGreen, we offer a comprehensive 10-year warranty on all parts and 6 years on labor, straight from the distributor, with additional warranty options for total peace of mind.
Conclusion
Choosing the Ameristar wall-mounted 4-zone heat pump means selecting a state-of-the-art heating and cooling solution, designed to provide optimal comfort, superior energy efficiency, and long-term reliability. AirGreen is your trusted partner for professional and personalized installation in the greater Montreal area. Contact us today to transform your home into a haven of comfort and savings.
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: 30,800 BTU/h at −8 °C, 32,400 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 7 combinations, from 9+9+9+9 to 12+12+12+12 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$3,696 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 2415512. 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.