Installation of a KeepRite wall-mounted heat pump in Saint-Laurent
AirGreen installed a KeepRite wall-mounted heat pump in Saint-Laurent. A meticulous HVAC installation that guarantees comfort, energy efficiency, and grant eligibility in Greater Montreal.
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The job on one screen
The article, chapter by chapter
A reliable HVAC solution for year-round comfort
In the Saint-Laurent sector of Montreal , our AirGreen team installed a KeepRite wall-mounted heat pump in a residence that was looking for a modern, energy-efficient and sustainable alternative to traditional heating systems. This project perfectly illustrates how a compact unit can transform the comfort of a space while respecting the architectural constraints of an urban dwelling.
Client context and needs
The owner wanted to improve the thermal comfort of his home, particularly in light of the significant temperature variations specific to Montreal's climate. The objective was clear:
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benefit from efficient air conditioning during the summer,
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enjoy reliable heating during the winter,
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reduce energy costs with a certified energy-efficient appliance.
The solution: a wall-mounted KeepRite , renowned for its reliability and good value for money.
Technical steps of installation
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Indoor unit positioning : The unit has been fixed high up to maximize air circulation and avoid any obstruction by furniture.
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Drainage : The installation was carried out with discreet gravity drainage, guaranteeing reliable condensate drainage.
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Drilling and refrigeration connections : careful passage through the partition, with reinforced insulation to prevent any heat loss and condensation.
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Electricity : dedicated connection, compliant with electrical safety standards, to ensure stable and safe operation.
Challenges encountered and solutions provided
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Wall space optimization : The unit had to be installed in a tight space, requiring precise adjustments to meet the necessary clearances.
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Aesthetic discretion : our team ensured that the conduits and covers fit in harmoniously, preserving the aesthetics of the home.
Immediate benefits for the customer
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Optimal comfort : efficient heating even in very cold weather and gentle, quiet air conditioning in summer.
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Energy savings : Seasonal efficiency (SEER/HSPF) helps reduce energy bills while reducing carbon footprint.
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Grant eligibility : This type of heat pump is generally eligible for provincial programs such as Chauffez Vert and LogisVert .
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Reliability and longevity : KeepRite is a brand renowned for the robustness of its components.
AirGreen: a guarantee of quality in Greater Montreal
At AirGreen, we understand that each home in Montreal, Laval, Longueuil, on the North Shore, or the South Shore has unique constraints. Thanks to our expertise, we adapt each HVAC installation to the building's specific needs and the occupants' needs.
Our technicians always ensure that the installation is safe, efficient, and durable, while providing attentive after-sales support. It's this personalized support that makes AirGreen a leading provider of wall-mounted heat pumps in Greater Montreal.
The job tools
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.
How the job unfolds
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 we check on a job like this one
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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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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).