Installation of a Tosot Lomo 23 Mini Split in Montréal-Nord
Maximize comfort without sacrificing space! Learn how our Tosot Lomo 23 Mini Split installation in Montréal-Nord blends top efficiency with smart, silent operation.
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A Flawless Installation Experience with AirGreen
At AirGreen, we believe that the comfort of your home should never be compromised, especially given Montreal’s diverse climates. Our recent installation of the Tosot Lomo 23 Mini Split heat pump in Montréal-Nord demonstrates our commitment to quality, efficiency, and customer satisfaction. This detailed report will highlight not only the sophistication of the Tosot Lomo 23 but also the precision and care AirGreen brings to every project.
Understanding the Tosot Lomo 23 Mini Split Heat Pump
Before diving into the installation details, let’s explore what makes the Tosot Lomo 23 Mini Split an exceptional choice for residential heating and cooling:
- High Efficiency: With an impressive SEER rating of 22.0, the Lomo 23 is designed to provide maximum comfort with minimal energy consumption.
- Innovative Features: Equipped with GREE’s two-stage inverter technology, this unit maintains 80% of its heating capacity even at -25°C, ensuring warm interiors during Montreal’s harsh winters.
- Quiet Operation: The unit operates at a low sound pressure level, with 29 dB(A) indoors and 54 dB(A) outdoors, making it one of the quietest in its class.
- Smart Technology: Optional WiFi connectivity allows for remote monitoring and control, adding a layer of convenience and modernity to its features.
Installation Overview
Client Needs and Site Specifics
The goal of our latest project was a residential building in the vibrant Montréal-Nord neighborhood. The client’s main concern was preserving balcony space while ensuring the heat pump unit was installed high enough to be discreet yet effective. This required a strategic approach to maximize living space without compromising the unit’s performance.
Customized Installation Strategy
- Wall-mounted outdoor unit: By mounting the outdoor unit high on the balcony wall, we ensured no floor space was used, meeting the client’s specific request.
- Seamless integration: The indoor unit blends perfectly with the interior aesthetic, providing efficient cooling and heating without being a visual distraction.
- Professional execution: Despite the straightforward nature of the installation, our team’s meticulous attention to detail ensured every aspect was handled precisely, from ductwork to electrical connections.
The AirGreen Advantage
Choosing AirGreen for your HVAC needs means opting for a partner who values your comfort and strives to exceed expectations. Here’s what sets us apart:
- Customer-focused solutions: Every installation is tailored to meet the unique needs and preferences of our clients.
- Top-tier warranty and support: We offer a robust 10-year warranty on the compressor, parts, and labor, ensuring peace of mind for a decade.
- Energy efficiency: Not only do we install units like the Lomo 23 that are Energy Star® certified, but we also help our clients navigate incentives such as Hydro-Québec’s LogisVert $385 program to maximize their investment.
A Satisfied Montréal-Nord Resident
The joy expressed by our client after installation was a clear indicator of our success. Not only was the installation executed to exact specifications, but it also resulted in significant savings and improved comfort. The client’s enthusiasm for maximizing balcony space while enjoying quiet, efficient climate control is a story we at AirGreen are proud to be part of.
Why Choose AirGreen?
At AirGreen, we don’t just install HVAC systems; we enhance lifestyles while ensuring environmental sustainability and economic efficiency. Our installations are carefully planned and executed to meet the highest standards of quality and reliability. Choose AirGreen to experience service as dependable as the comfort we promise to deliver.
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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An on-site estimate, the right capacity, the right equipment.
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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).