Installation of a Tosot LomoPlus UltraHeat Mini Split in Rosemont–La Petite-Patrie, Montreal
From the bustling streets of Rosemont–La Petite-Patrie emerges a tale of comfort, efficiency, and unmatched HVAC expertise. Dive in to discover why Montrealers are choosing AirGreen.
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.
The Perfect Blend of Efficiency and Elegance: Our Latest HVAC Triumph
The Backdrop: Rosemont–La Petite-Patrie, Montreal
Nestled in the heart of Rosemont–La Petite-Patrie, a vibrant neighborhood in Montreal, our latest installation stands as a testament to our commitment to quality, efficiency, and customer satisfaction. This bustling area, known for its rich history and cultural tapestry, now boasts a state-of-the-art Tosot LomoPlus UltraHeat Mini Split, ensuring comfort for its residents throughout the year.
Introducing the Tosot LomoPlus UltraHeat Mini Split
- Brand: Tosot
- Model: LomoPlus UltraHeat
- Type: Mini Split
- Cooling Capacity: 12,000 BTU
- Heating Capacity: Operative even at a chilling -30°C
- Dimensions (Interior): 39.2 x 8.8 x 11.8 inches
- Dimensions (Exterior): 35.3 x 14.8 x 23.4 inches
- Energy Star®: Certified
- WiFi: Included for smart control
- AHRI Number: 10062019
- Efficiency: A whopping 30.5 SEER
- Warranty: Comprehensive 10-10-10 (Compressor - Parts - Labor)
- Voltage: 220V
- Sound Pressure Level (Exterior): 53.0 dB(A) - Whisper quiet
- Sound Pressure Level (Interior): Ranges between a soft 22 dB(A) to 49 dB(A)
- Refrigerant: Eco-friendly R-410A
Why the Tosot LomoPlus UltraHeat Stood Out
Our customer had a clear vision: a powerful 12,000 BTU machine that's budget-friendly, whisper-quiet, and resilient even in the harshest of Montreal's winters. Enter the Tosot LomoPlus UltraHeat. Not only does it tick all these boxes, but it also comes with a robust 10-year warranty on everything, ensuring peace of mind for a decade.
Installation: A Seamless Experience
The installation process was a breeze, thanks to the proximity of the compressor and the head unit, as well as the nearby electrical panel. This meant no extra charges, translating to an unbeatable price for our customer. The result? Another elated client added to our ever-growing list of satisfied Montrealers.
Grants and Savings: The Cherry on Top
One of the standout features of this installation was the attractive grants the model qualified for:
- Federal Grant: Between $2,500 to $5,000
- Provincial Grant: $405
These grants, coupled with the machine's top-tier efficiency, mean substantial savings in the long run.
A Story of Success
Every installation has its story, and this one is no different. From the initial consultation, where our client's needs were meticulously noted, to the final installation, where those needs were flawlessly met, this project was a journey of dedication, expertise, and unmatched service quality. It's not just about installing an HVAC system; it's about weaving it seamlessly into the fabric of a home, ensuring comfort, efficiency, and satisfaction.
Why Choose AirGreen for Your HVAC Needs?
Our recent installation in Rosemont–La Petite-Patrie is a shining example of our commitment to excellence. With a keen eye for detail, a passion for quality, and a relentless drive to exceed expectations, we at AirGreen are setting new standards in the HVAC industry, one installation at a time.
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?
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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).