Installation of an AMERISTAR 22 SEER 115V Wall-Mounted Heat Pump in Montreal
AirGreen's recent installation in Montreal highlights a seamless blend of efficiency and satisfaction, showcasing why they're the top choice for HVAC solutions.

Take a tour of the installation
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
A Seamless Transition to Efficiency: The AMERISTAR 22 SEER Heat Pump Installation
In the heart of Montreal, AirGreen, a leading HVAC company, recently undertook a project that underscores our expertise and dedication to providing high-quality, efficient heating, ventilation, and air conditioning (HVAC) solutions. This project involved the installation of an AMERISTAR 22 SEER 115V Wall-Mounted Heat Pump, a model celebrated for its efficiency, reliability, and quiet operation. Our commitment to excellence and customer satisfaction shines through in this straightforward yet significant installation, demonstrating why Montreal residents continue to choose AirGreen for their HVAC needs.
The Client's Request: A Perfect Blend of Old and New
Our client, residing in the vibrant city of Montreal, approached us with a specific request: to replace an outdated heating and cooling unit without altering the existing setup. The challenge was to integrate a new, high-efficiency system that could utilize the same pipes and electrical wiring, thereby ensuring a seamless transition from old to new. The AMERISTAR 22 SEER 115V Wall-Mounted Heat Pump emerged as the ideal candidate for this task, meeting all the client's criteria, including quiet operation, high efficiency, and affordability.
The AMERISTAR Advantage: Unveiling the Features
Before diving into the details of the installation, let's take a moment to appreciate the features of the AMERISTAR 22 SEER 115V model that make it a standout choice for homeowners:
- Energy Star® Certification: Ensures that the unit meets stringent energy efficiency guidelines set by the U.S. Environmental Protection Agency.
- Impressive Efficiency: With a 22.0 SEER rating, this heat pump offers significant savings on energy bills without compromising comfort.
- Quiet Operation: Features a sound pressure level of just 62 dB(A) for the exterior unit and 43/52 dB(A) for the interior, making it one of the quietest in its class.
- Robust Warranty: Comes with a comprehensive 10-10-10 warranty covering the compressor, parts, and labor, ensuring peace of mind for the homeowner.
- Eco-Friendly Refrigerant: Utilizes R-410A gas, reducing the carbon footprint and making it an environmentally friendly choice.
- Versatile Heating and Cooling Capabilities: With a cooling capacity of 12,000 BTU and the ability to heat effectively down to -20°C, it's designed to handle Montreal's diverse climate.
The Installation Process: Efficiency and Precision
Our team of certified professionals approached the installation with the goal of exceeding the client's expectations while maintaining the integrity of the existing setup. Here's a glimpse into our methodical process:
- Assessment and Preparation: We began by carefully assessing the existing infrastructure, ensuring that the pipes and electrical wiring were in optimal condition to support the new unit. This involved a thorough cleaning and inspection to identify any potential issues.
- Seamless Integration: Thanks to the compatibility of the AMERISTAR 22 SEER 115V with the existing setup, our team was able to efficiently integrate the new heat pump, leveraging the existing pipes and wiring without any major modifications.
- Quality Assurance: Following the installation, our experts conducted several tests to guarantee the system's performance and efficiency. This included verifying the proper function of the heat pump under various conditions, ensuring that it lived up to its energy efficiency and quiet operation claims.
- Client Education: We provided the homeowner with a comprehensive overview of the heat pump's features, maintenance tips, and operational guidance to maximize efficiency and longevity.
The Result: Another Satisfied Customer
The project's success was evident not only in the seamless installation and the immediate improvement in indoor comfort but also in the client's satisfaction. The homeowner was particularly impressed with our attention to detail, the cleanliness of the installation process, and our commitment to utilizing the existing infrastructure, thereby minimizing disruption and expense.
Why AirGreen Stands Out
This installation exemplifies AirGreen's commitment to providing top-tier HVAC solutions tailored to our clients' unique needs. Our approach combines technical expertise, a deep understanding of our products, and a customer-centric philosophy, ensuring that every project we undertake is executed with precision and care.
- Expertise in HVAC Solutions: Our team's comprehensive knowledge of HVAC systems, coupled with a specialization in energy-efficient and eco-friendly options, positions us as a trusted partner for all your heating and cooling needs.
- Commitment to Quality: From the initial consultation to the final installation and beyond, we prioritize quality, reliability, and customer satisfaction.
- Tailored Solutions: We understand that every home and every client is unique. That's why we offer customized solutions designed to meet your specific requirements, ensuring optimal comfort and efficiency.
The big day, step by step
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
What would it look like at your place?
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
No question matches. Write to us: we answer.
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Every house has its constraints. We see them before we install.
The on-site estimate is free and the quote follows within 24 hours.
Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).
