Installation of a Tosot Lomo 23 Wall-Mounted Heat Pump in Montréal-Nord
AirGreen's latest project in Montréal-Nord showcases a masterclass in HVAC installation, blending technical skill with innovative solutions for ultimate comfort.
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 Testament to Skill and Dedication: Overcoming Architectural Challenges
At AirGreen, we pride ourselves on not just providing HVAC solutions but delivering custom-tailored comfort that meets and exceeds our customers’ expectations. Our recent project in Montréal-Nord is a perfect illustration of our commitment to excellence, ingenuity, and customer satisfaction.
The Challenge of Excellence
The installation of a Tosot Lomo 23 Wall-Mounted Heat Pump in a charming home in Montréal-Nord was nothing short of a technical ballet. The project was marked by its difficulty level: Hard, a challenge we accepted with enthusiasm. The uniqueness of this project lay not just in the model’s advanced features but in the intricate logistics of its installation.
Strategic Installation for Optimal Comfort
The task at hand was to install the indoor unit at the beginning of the staircase leading to the second floor. This strategic placement required us to navigate through the attic, crafting a solution that was both aesthetically pleasing and functional. Our goal was to direct airflow towards the three rooms upstairs, ensuring even temperature distribution for optimal comfort. This demanded precision, skill, and a thorough understanding of airflow dynamics.
Invisible Integration
What sets this installation apart is our meticulous approach to concealing pipes and electric wires. Our team skillfully hid all conduits behind the head unit, eliminating the need for a post-installation paint job. This level of detail not only speaks to our dedication to a clean install but also to our foresight in preserving the home’s aesthetic integrity.
The Tosot Lomo 23: A Closer Look
The Tosot Lomo 23 is not just any heat pump; it’s a beacon of efficiency and innovation. With an Energy Star® rating, optional WiFi connectivity, and an impressive 20.0 SEER efficiency, it represents the pinnacle of climate control technology. Its cooling capacity of 18,000 BTU and ability to provide heat at temperatures as low as -25°C make it a formidable ally against Montréal’s diverse weather conditions.
Designed for Silence, Engineered for Performance
The Lomo 23’s design features are as thoughtful as its performance metrics. With sound pressure levels as low as 39 dB(A) indoors and 55 dB(A) outdoors, it operates with whisper-like silence. This ensures that your home remains a peaceful haven, undisturbed by the mechanical hums often associated with less refined units.
Commitment to Longevity
Understanding the importance of reliability, the Tosot Lomo 23 comes with a comprehensive warranty package — 10 years for the compressor and parts. An extended warranty is also available, ensuring that your investment is protected for years to come.
Why Choose AirGreen for Your HVAC Needs?
Expertise and Precision
Our installation of the Tosot Lomo 23 in Montréal-Nord exemplifies not just our technical prowess but our unwavering commitment to customer satisfaction. We tackle each project with a blend of precision, innovation, and a deep understanding of our customers’ needs.
Tailored Solutions for Your Home
At AirGreen, we understand that each home is unique. That’s why we offer customized solutions that are not only efficient and reliable but also seamlessly integrate into the fabric of your home. Our approach to HVAC installation focuses on enhancing your living space’s comfort, efficiency, and aesthetic appeal.
A Team You Can Trust
Choosing AirGreen means partnering with a team of professionals dedicated to excellence. Our technicians are not just skilled workers; they are craftsmen who take pride in delivering top-notch service that stands the test of time.
In Conclusion
The installation of the Tosot Lomo 23 Wall-Mounted Heat Pump in Montréal-Nord is more than a testament to our technical abilities. It is a story of overcoming challenges, delivering bespoke solutions, and ensuring the utmost satisfaction of our clients. At AirGreen, we don’t just install HVAC systems; we enhance lives through innovative climate control solutions.
Choose AirGreen for your next HVAC project in Montreal, Laval, Longueuil, North Shore, and South Shore, and experience the difference that dedication, expertise, and a customer-focused approach can make.
How it goes, from the first call to the end
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.
And 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.
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.
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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).