Installation of a Tosot LomoPlus Mini Split in Montreal
Experience silent, efficient heating with a beautiful view. See how AirGreen's perfect installation of the Tosot LomoPlus Mini Split transforms Montreal homes!

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 View to Comfort: Transforming Spaces with Silent Efficiency
When choosing a heating and cooling solution for your home, the details matter as much as the broad strokes. AirGreen, a leader in HVAC services across Montreal and its surrounding areas, recently completed an exemplary installation of the Tosot LomoPlus UltraHeat Mini Split in a scenic Montreal residence. This project not only underscored our commitment to quality and customer satisfaction but also showcased the sophisticated capabilities of the LomoPlus UltraHeat, making it an ideal choice for modern living spaces.
Project Overview: Simplicity Meets Elegance
Situated with a picturesque view of the Saint Lawrence River, this installation was anything but ordinary. The client required a silent and efficient heat pump for their living room that wouldn't disrupt the serene environment. Our team's expertise allowed for the indoor and outdoor units to be installed seamlessly within 15 feet of each other, with the electrical panel conveniently located about 10 feet from the exterior unit.
Dual Installation Advantage
What set this project apart was the opportunity to perform simultaneous installations in the same condo building. This not only streamlined our operations but also provided both clients with an attractive group discount. The outcome was a testament to AirGreen's ability to manage and execute multiple tasks efficiently while maintaining the highest standards of professionalism. Each unit was installed with minimal disruption, followed by a skilled plaster who added the finishing touches with gyprock and color-matched paint, ensuring the installations were as invisible as they were effective.
Technical Brilliance of the Tosot LomoPlus UltraHeat
Features at a Glance:
- Energy Efficiency: Rated at 30.5 SEER with Energy Star certification.
- Connectivity: Wi-Fi enabled for smart, remote management.
- Performance: Provides heat even at -30°C, ensuring comfort during harsh Canadian winters.
- Quiet Operation: Maintains a low sound pressure level (22 dB(A) indoor and 53 dB(A) outdoor).
- Comprehensive Warranty: Offers peace of mind with a 10-year guarantee on compressor, parts, and labor.
This model is not just a heat pump; it's a sanctuary of comfort. Its advanced features like the two-stage compressor and intelligent defrost system maximize energy efficiency and performance, adapting seamlessly to the climatic challenges of the region.
The LomoPlus UltraHeat: A Synonym for Uncompromised Comfort
Equipped with GREE's pioneering technology, the LomoPlus UltraHeat excels in delivering high-performance heating and cooling. Its compact design ensures that it fits discreetly into any space, while the intelligent self-diagnosis system minimizes downtime, enhancing overall user experience.
Customer Satisfaction: Our Priority
The feedback from our clients was overwhelmingly positive, highlighting the professionalism and attention to detail of our installation team. The smooth and silent operation of the Tosot LomoPlus has made it a standout feature in their homes, providing not just climate control but also enhancing their living environment.
GUARANTEED COMFORT, from the mild breezes of summer to the frigid winds of winter, the LomoPlus ensures your home remains a haven of comfort. Whether it’s enhancing the airflow with its turbo function or adjusting settings remotely, this heat pump does more than regulate temperature—it enriches lifestyles.
Why Choose AirGreen?
With years of experience and a dedication to excellence, AirGreen is your go-to expert for all HVAC needs. Our ability to handle complex installations with finesse and our commitment to sustainable practices make us not just a service provider but a partner in enhancing your home environment.
Discover the AirGreen difference. With every installation, we promise a blend of technological innovation, unmatched efficiency, and aesthetic integration, ensuring your home remains a portrait of 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.
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
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).
