Ameristar TripleZone Wall Heat Pump | 42,000 BTU Compressor | Installation in Montreal, Laval, Longueuil, South Shore & North Shore
The Ameristar 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 $4,272 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.
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. $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 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.
Ameristar Wall-Mounted TripleZone Heat Pump
An Eco-Efficient Choice for Optimal Comfort
In the vast realm of heating and cooling solutions, the Ameristar Wall-Mounted TripleZone Heat Pump stands out for its unmatched performance, its ability to create a comfortable environment in your home, and its exemplary energy efficiency. At AirGreen, based in Montreal and also serving Laval, Longueuil, as well as the North Shore and South Shore, our mission is to provide you with HVAC (Heating, Ventilation, and Air Conditioning) solutions that combine modern technology with environmental respect.
Exceptional Technical Features
The Ameristar Wall-Mounted TripleZone Heat Pump is a true technological marvel. Equipped with a 42,000 BTU compressor, it can deliver impressive cooling capacity while remaining extremely energy-efficient. Here are some of its notable features:
- Heating Capacity up to -30°C: Robust performance even in the harshest winter conditions.
- Comfort Zones: Up to 5 zones for maximum customization of your comfort.
- Efficient and Eco-Friendly: Energy Star® certified with a 21.0 SEER efficiency rating, ensuring optimal energy use.
- Advanced Options: Including optional WiFi connectivity for remote control and increased ease of use.
- Extended Warranty: Peace of mind with 10 years warranty on the compressor and parts.
Undeniable Benefits for Homeowners
Energy Savings and Subsidies
One of the major advantages of the Ameristar Wall-Mounted TripleZone Heat Pump is its substantial potential for energy cost savings. Being Energy Star® qualified, it is eligible for federal and provincial subsidies, thus allowing homeowners to benefit from attractive financial aids for installing eco-efficient solutions.
Customized Comfort
Thanks to its three independent zones, this heat pump allows for precise temperature regulation in different rooms, ensuring personalized comfort for each family member. Additionally, the variable-speed compressor automatically adjusts its power according to needs, reducing temperature fluctuations and operating noise.
Professional Installation and After-sales Service
At AirGreen, we understand that installing a heat pump is a significant investment for your home. That's why we offer professional installation service carried out by our qualified and experienced technicians. Our goal is to ensure that your heating and cooling system operates optimally, offering safety, comfort, and energy efficiency.
Why Choose AirGreen for Your Wall-Mounted TripleZone Heat Pump?
Choosing AirGreen means selecting a trusted partner for the installation of your heat pump in Montreal, Laval, Longueuil, as well as the North and South Shores. Our expertise and commitment to customer satisfaction are the pillars of our reputation. We are dedicated to providing HVAC solutions tailored to your specific needs, while ensuring energy efficiency and environmental respect.
Conclusion:
The Ameristar Wall-Mounted TripleZone Heat Pump represents the pinnacle of heating and cooling technology for your home. With its advanced features, exceptional performance in terms of energy savings and comfort, and the professional support of AirGreen, it is the ideal solution to improve your quality of life while reducing your carbon footprint. Discover today how AirGreen can transform your home with the Ameristar Wall-Mounted TripleZone Heat Pump.
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.
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?
$4,272 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 2415513. 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; labour is not included by the manufacturer. 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.