Installation of a Panasonic wall-mounted heat pump in Rosemont–La Petite-Patrie
Installation of a Panasonic wall-mounted heat pump above a patio door in Rosemont–La Petite-Patrie: careful HVAC installation, gravity drain, discreet route and quiet comfort for the kitchen and living area.
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A neat integration above a patio door in a Montreal kitchen
At AirGreen , we optimize each HVAC installation to combine performance, comfort, and aesthetics. In this Rosemont–La Petite-Patrie (Montreal) home, we installed a Panasonic wall-mounted heat pump positioned above a patio door , in the heart of the kitchen. The goal: to efficiently cool the main living space in the summer, ensure stable heating during the off-seasons, and reduce overall electricity consumption—without compromising the room's ergonomics.
Client context and needs
The condo features a kitchen area adjacent to the dining room, with direct access to a rear terrace. The typical Montreal layout (patio door, standard ceiling, tall cabinets on the right side) limited the potential locations for the interior headboard. The client was looking for:
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Fast and consistent summer comfort , even during heat waves.
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A quiet heating supplement in spring and fall.
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A discreet and clean integration into a kitchen used daily.
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A reliable solution eligible for grant programs when equipment and performance allow.
Choosing equipment: why Panasonic
The Panasonic brand is renowned for the quality of its motors and the optimization of its control electronics, two key elements for temperature stability and energy efficiency . In residential applications, their indoor units are distinguished by:
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Precise and modulated blowing , useful for avoiding direct air currents in food preparation areas.
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Reduced noise levels , appreciated in an open kitchen where people talk, cook and entertain.
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Accessible filters promoting regular HVAC maintenance , crucial in the kitchen environment (greasy particles, steam).
In this project, the Panasonic wall-mounted heat pump covers the kitchen and adjacent space, with sufficient airflow to circulate the entire area without obstructing traffic around the patio door.
AirGreen installation constraints and technical responses
1) Mounting high above a patio door
Installation above an opening requires careful planning : solid mounting in the frame, respect for upper clearances for air intake and free access to the shutter . We have:
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Checked the fixing axis on a suitable lintel and reinforced the support if necessary.
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Maintained sufficient ceiling clearance behind the upper intake to preserve cooling mode performance and thermal sensor stability.
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Position the unit to avoid air recirculation against the ceiling, thus limiting hot/cold stratification.
2) Proximity of cabinets and airflow management
The presence of wall units on the right side requires fine-tuning the sweep to ensure that the air does not directly hit the cabinets. The orientation of the vanes and the fan speed have been set to maximize diffusion towards the dining room and limit the impact on the cooking zones.
3) Short and discreet refrigeration path
The installation near the exterior allowed for a clean side wall crossing , with a curvature radius respected for the insulated copper connections. Inside, the routing remains invisible ; outside, the white capping (UV protection sheath) ensures watertightness and the architectural finish.
4) Drainage of condensate by gravity
The unit, placed at a high point , allows gravity evacuation of the drain—a reliable and silent solution that avoids the need for an additional pump. The pipe is continuously sloped , insulated to prevent any parasitic condensation and protected when passing through the wall.
5) Dedicated power supply and safety
The heat pump is connected to a dedicated circuit (circuit breaker sized according to the model's nameplate) and an external disconnect switch has been provided near the condenser. This standardized diagram facilitates maintenance work and secures the installation.
Sizing and comfort: our approach
Even when a photo does not reveal the identification plate, our sizing is always based on a load calculation (volume, internal inputs, sunshine, infiltration). In a kitchen, variable thermal inputs (oven, stove, occupants) require a modulation margin . The inverter technology of the Panasonic wall-mounted heat pump responds precisely to these variations, adjusting the power to stabilize the temperature smoothly, with a measured impact on the electricity bill .
Good practices in a kitchen
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Filtration and hygiene : cleaning of filters more frequently than elsewhere (during periods of intensive use).
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Flow direction : avoid blowing directly onto the cooking areas or the table; favor a wide sweep towards the living space.
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Annual maintenance : complete HVAC maintenance (pressure, temperature, tightening, exchanger cleanliness, drain test) maintains seasonal performance and preserves the warranty .
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Clearances : Respect the top and side clearances around the inner head to avoid performance losses and suction noise.
Result: comfort, silence and clean finish
The Panasonic unit fits perfectly above the patio door, invisible in everyday life but effective from the first warm weather. The blower covers the kitchen and dining room; the temperature remains uniform , even when the door is repeatedly opened. The reduced noise level allows you to cook, chat or work without disturbance.
Grants and eligibility (point of attention)
Many Panasonic wall-mounted heat pumps meet the eligibility criteria for the Montreal, Laval, Longueuil, North Shore and South Shore programs, when their certified performance and cold weather operating range allow it. We systematically check:
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Certification numbers (AHRI/NRCan).
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The required seasonal outputs (heating and air conditioning).
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The low temperature operating range specified by the manufacturer.
When the chosen device meets the scales, our team assists the customer in preparing the files and proof of installation (detailed invoice, model numbers, installation photos, etc.).
Operating tips to maximize savings
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Stable setpoint : maintaining a regular setpoint avoids unnecessary power calls.
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Reasonable dehumidification mode : use it in heavy weather, not continuously.
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Interior doors : leave them ajar to improve distribution to adjacent rooms.
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Periodic cleaning : filters and facade; plan annual professional maintenance to maintain performance and air quality.
Why AirGreen for your HVAC installation in Montreal and surrounding areas?
We operate weekly in Montreal, Laval, Longueuil, on the North Shore and the South Shore . Our teams:
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Evaluate housing constraints and the best interior head position .
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Optimize the refrigeration path to minimize losses and preserve aesthetics.
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Provide responsive after-sales service , with original parts and technicians trained on Panasonic, Fujitsu, Gree, Hitachi, Midea, Sharp, etc. platforms.
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Document the installation (photos, diagrams, serial numbers) to facilitate grants and warranty.
What to remember
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Panasonic wall-mounted heat pump installed high above a patio door , ideal for a kitchen with an exit to the terrace.
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Gravity drain , discreet external capping and short route : reliability, silence and clean finish.
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Regular HVAC maintenance and sweep settings for consistent comfort throughout the living area.
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AirGreen support throughout Greater Montreal for selection, installation, maintenance and, where applicable, subsidies .
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).