Installation of a Tosot LomoPlus Mini Split in Villeray–Saint-Michel–Parc-Extension, Montreal
Experience silent, efficient cooling and heating with the Tosot LomoPlus installed by AirGreen—where technology meets tailored comfort.

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.
Exceptional Comfort with a Whisper: The Tosot LomoPlus Mini Split
A Tale of Innovation and Customer Satisfaction
When it comes to enhancing the comfort of your home with the latest in HVAC technology, the choices you make matter. At AirGreen, we understand that each installation is more than just fitting a machine; it’s about delivering a solution that aligns perfectly with your lifestyle and needs. This belief was vividly illustrated in our recent project in the bustling Villeray–Saint-Michel–Parc-Extension neighborhood of Montreal, where precision met preference to create an optimal living environment.
Project Overview
Our team at AirGreen recently had the pleasure of installing the Tosot LomoPlus UltraHeat Mini Split, a top-tier heat pump known for its robust performance and silent operation. This model, a beacon of efficiency with a 30.5 SEER rating and the capacity to perform even at -30°C, ensures that comfort is never compromised, regardless of the weather outside.
Client-Centric Installation
The installation site was a quaint residence where balcony space is treasured and peace is paramount. Our client’s request was clear – maximize balcony space and minimize noise. Adhering to their needs, we strategically placed the outdoor unit high on the wall, not only preserving valuable outdoor space but also ensuring that the unit operates unobtrusively, nestled between two windows. The interior unit was installed with minimal disruption, blending seamlessly into the space with its compact and sleek design.
Technical Precision
Our installation process is a testament to our commitment to detail and quality. The LomoPlus UltraHeat comes equipped with features that make it a standout choice. The unit supports Wi-Fi connectivity, allowing temperature adjustments from any smartphone. Its Energy Star® certification reflects its energy efficiency, a crucial factor in today’s environmentally conscious market.
Specifications at a Glance:
- Cooling and Heating Capacity: 12,000 BTU
- Sound Pressure Level: 22 dB(A) indoors, ensuring near-silent operation
- Efficiency: 30.5 SEER, translating to significant energy savings
- Warranty: Robust 10-year coverage on compressor, parts, and labor
Enhanced Features for Optimal Comfort
Intelligent Design
The LomoPlus is designed with user comfort in mind. Features such as the intelligent defrost system and memory function adapt to environmental conditions and user settings to optimize performance without manual intervention.
Special Features for Enhanced Usability:
- Wireless Control: Adjust settings remotely for ultimate convenience.
- Turbo Function: Achieves desired indoor temperatures swiftly.
- Self-Diagnosis: Streamlines maintenance by notifying technicians of specific issues, reducing downtime.
Client Feedback and Satisfaction
Post-installation, the feedback was overwhelmingly positive. The client appreciated the thoughtful placement of the unit, which not only enhanced the balcony’s usability but also ensured a peaceful indoor environment. The professional demeanor and meticulous attention to detail by our AirGreen team did not go unnoticed.
The AirGreen Promise
At AirGreen, your comfort is our command. Our installations go beyond mere technical setups; they are crafted experiences tailored to your unique needs. Whether it’s facing the frosty climes of a Montreal winter or the swelter of summer, trust AirGreen to provide a solution that not only meets but exceeds expectations.
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
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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).
