Installation of a Tosot LomoPlus UltraHeat Wall-Mounted Heat Pump in La Prairie, South Shore
See how one La Prairie homeowner maximized their living space with a high-mounted Tosot heat pump installation—expertly done by AirGreen for seamless comfort and style!
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 Seamless Blend of Efficiency and Aesthetics
Unpacking the Excellence of the LomoPlus UltraHeat
At AirGreen, we are committed to delivering top-tier HVAC solutions that not only meet but exceed the expectations of our clients across Montreal, Laval, Longueuil, North Shore, and South Shore. Our latest project in La Prairie is a testament to our dedication to quality and client satisfaction. This installation showcases the advanced Tosot LomoPlus UltraHeat, a wall-mounted heat pump renowned for its stellar performance and energy efficiency.
Project Overview: Tailored Installation for Enhanced Living Spaces
Our client in La Prairie desired a heat pump installation that would not intrude on the valuable space of their driveway. Understanding the importance of every square foot, we strategically placed the compressor high on the wall, an optimal solution that preserved ground space while enhancing the property's aesthetics. The chosen location also allowed for a streamlined installation, aligning perfectly with the interior unit on the second floor. This careful placement ensured minimal disruption to the home’s structure and appearance.
Technical Brilliance Behind the Scenes
The LomoPlus UltraHeat is engineered to withstand the harshest Canadian winters, offering reliable warmth down to temperatures of -30°C. Equipped with GREE's advanced two-stage Inverter technology, this model operates with an astonishing 30.5 SEER efficiency, setting a new standard in the HVAC industry. Here are some key features that set the LomoPlus apart:
- Energy Star® Certification: Ensures maximum efficiency and lower energy bills.
- WiFi Capability: Allows remote control of settings for convenience and energy management.
- Comprehensive Warranty: A robust 10-year coverage on compressor, parts, and labor guarantees peace of mind.
- Quiet Operation: Maintains a low sound pressure level, ensuring a serene indoor environment.
Client-Centric Installation with a Personal Touch
Understanding our client's needs was paramount. By installing the external unit away from the ground, we maximized usable outdoor space—a small yet significant detail that enhanced the overall functionality of their home. Our team expertly concealed all piping and wiring, leaving a clean, uncluttered finish that required no subsequent touch-ups or modifications by the homeowner.
Satisfaction That Spreads
The success of this installation resonated immediately, with our client not only expressing immense satisfaction but also recommending our services to family, which in turn led to another consultation within the same week. This ripple effect of satisfaction underscores the trust and reliability that AirGreen brings to the table. Additionally, we were able to extend a group discount to our client and their brother, further solidifying a lasting professional relationship.
Why Choose AirGreen?
Opting for AirGreen means choosing a partner that values your comfort and strives to deliver it efficiently and elegantly. Our installations are more than just mechanical operations; they are carefully thought-out projects that blend technology, client aspirations, and environmental considerations into a seamless whole. Here’s why countless clients continue to choose us for their HVAC needs:
- Professionalism and Precision: Every installation is executed with meticulous attention to detail.
- Custom Solutions: We tailor every project to meet the unique needs and preferences of our clients.
- Long-Term Support: Our comprehensive warranties and responsive service ensure that your investment is protected.
GUARANTEED COMFORT, FROM HOT WEATHER TO ARCTIC COLD—when you choose AirGreen, you choose a lifetime of comfort managed smartly and stylishly.
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).