Installation of a Tosot LomoPlus UltraHeat Wall-Mounted Heat Pump in Sainte-Catherine, South Shore
Experience the difference with AirGreen's Tosot LomoPlus UltraHeat installation – where efficiency meets unparalleled customer satisfaction.
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.
The Tale of Transformation: A Heat Pump Installation Odyssey
The Prelude: Choosing AirGreen
In the vibrant city of Montréal and its surrounding areas like Laval, Longueuil, North Shore, and South Shore, AirGreen stands out as a beacon of excellence in HVAC services. Our commitment to enhancing the comfort and energy efficiency of your homes through state-of-the-art heating and cooling solutions has set us apart. This narrative delves into one of our hallmark installations in Sainte-Catherine, South Shore, illustrating not just our technical prowess but the artistry that accompanies our work.
Understanding the Heart of the Project: The Tosot LomoPlus UltraHeat
Before we immerse ourselves into the intricacies of the installation, let's acquaint ourselves with the star of the show – the Tosot LomoPlus UltraHeat Wall-Mounted Heat Pump. Boasting a formidable 18,000 BTU size and an impressive 24.5 SEER efficiency, this machine is a paragon of climate control. Its features are nothing short of extraordinary:
- Energy Star® certification ensures top-tier energy efficiency.
- WiFi capabilities offer convenience at your fingertips.
- Accredited by AHRI (10062020), ensuring reliability and performance.
- Extended warranty options (10-10-10) provide peace of mind.
- The sound pressure levels are meticulously balanced for indoor tranquility.
- It operates seamlessly with R-410A gas, promising eco-friendly performance.
- The cooling and heating capacities are designed to tackle extreme temperatures.
The Installation Saga: A Symphony of Precision and Creativity
The backdrop of this installation was an apartment in Sainte-Catherine, amidst a sea of renovation. Renovations offer a unique canvas for HVAC installations – a time when the constraints of existing designs fade away, allowing for bold, innovative approaches to heating and cooling solutions.
The Challenge: Medium, Yet Rewarding
Our team, armed with expertise and experience, faced a medium difficulty level, but the opportunity to redefine comfort in this living space was exhilarating. The primary directive from our client was clear – prioritize airflow and functionality over aesthetics. A directive that, in the midst of renovation, opened the door to unparalleled creative freedom.
Optimal Placement: The Art of Airflow
Finding the ideal location for the indoor unit was crucial. It wasn't just about installing a machine; it was about integrating a solution that breathed life into every corner of the home. Our team's meticulous analysis and strategic placement ensured that the LomoPlus UltraHeat became the heart of the home's climate control, pulsating warmth and coolness in equal measure, tailored to the needs of the space.
Harnessing the Hydro-Québec Grant: An Economic Symphony
A notable crescendo in this installation's symphony was our ability to secure a $1,704 Hydro-Québec Grant for our client. This not only highlighted the economic efficiency of our chosen heat pump but also underscored our commitment to providing value that extends beyond the physical installation.
The Finale: A Testament to Customer Satisfaction
As the renovation dust settled and the last pipe was connected, the transformation was complete. The Tosot LomoPlus UltraHeat stood as a testament to our client's trust in us, and our dedication to exceeding expectations. The joy and satisfaction of our client were palpable, echoing the sentiments of countless customers who have chosen AirGreen for their HVAC needs.
Why Choose AirGreen? A Reflection
Choosing AirGreen means entrusting your comfort to a team that views HVAC solutions as more than just installations. We see them as a means to enhance the way you live and interact with your space. Our dedication to innovation, customer satisfaction, and eco-friendly solutions drives us forward, setting new standards in the HVAC industry.
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.
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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).