Installation of a Tosot LomoPlus UltraHeat Wall-Mounted Air Conditioner in La Prairie
Transform your home with the Tosot LomoPlus UltraHeat—exceptional comfort, impressive savings, expertly installed in La Prairie by 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.
Revolutionizing Comfort with High-Performance HVAC Solutions
AirGreen is dedicated to bringing exceptional climate control solutions to homes and businesses across Montreal, Laval, Longueuil, and both the North and South Shores. Our latest project in La Prairie showcases our commitment to quality and customer satisfaction. We installed the Tosot LomoPlus UltraHeat, a top-of-the-line wall-mounted air conditioner known for its robust performance and energy efficiency. This installation not only enhances the comfort of the property but also leverages the benefits of the $1,860 LogisVert Grant by Hydro-Québec, making it an economically smart choice for our customers.
A Detailed Look at the Tosot LomoPlus UltraHeat
The Tosot LomoPlus UltraHeat is designed to withstand the harsh Canadian climate, ensuring maximum comfort from the sweltering summer heat to the frigid winter cold. Below are the features that make this model stand out:
- Model Specifications: The unit has a cooling capacity of 24,000 BTU and can provide heating down to temperatures as low as -30°C, which is critical for Canadian winters. The indoor unit dimensions are 43.3 x 9.8 x 12.8 inches, while the outdoor unit measures 38.5 x 16.8 x 31.1 inches.
- Efficiency and Sustainability: This model is Energy Star® certified, featuring a SEER (Seasonal Energy Efficiency Ratio) rating of 21.5. It utilizes R-410A refrigerant, known for its lower environmental impact compared to older refrigerants.
- Innovative Technology: Equipped with GREE's advanced two-stage Inverter technology, the LomoPlus UltraHeat maintains up to 80% of its heating capacity even at -30°C. It includes a base with a heating element to prevent condensation freezing, ensuring the unit operates efficiently throughout the winter.
- User-Friendly Features: The unit comes with WiFi capabilities allowing for remote control via smartphone, an intelligent defrost system, a compact design for easy installation, and a quiet operation with sound pressure levels as low as 34 dB(A) indoors.
Customized Installation in La Prairie
The recent installation of the Tosot LomoPlus UltraHeat in La Prairie was tailored to the specific needs of the homeowner. Our expert technicians ensured that the installation was seamless and aesthetically pleasing, integrating perfectly with the modern interiors of the home. The strategic placement of both the indoor and outdoor units maximizes airflow and efficiency while maintaining the exterior beauty of the property.
Why Choose AirGreen for Your HVAC Needs?
- Trusted Professionals: At AirGreen, we pride ourselves on the quality of our workmanship and the expertise of our team. We are certified and experienced in handling installations that range from single-family homes to large commercial properties.
- Customer-Centric Services: We understand that each customer has unique needs. Our approach is to provide customized solutions that ensure comfort, efficiency, and cost-effectiveness.
- Commitment to Sustainability: By installing energy-efficient products like the Tosot LomoPlus UltraHeat, we help our customers reduce their environmental impact and enjoy savings on energy bills.
Enduring Comfort with a Warranty to Match
The Tosot LomoPlus UltraHeat comes with a formidable 10-year warranty on parts and labor, reflecting the manufacturer's confidence in their product. For added peace of mind, customers can opt for an extended 10-year labor warranty, ensuring that their investment is protected for years to come.
At AirGreen, our goal is to provide heating and cooling solutions that not only meet but exceed your expectations. Whether it's a frigid winter night or a scorching summer day, our installations ensure that your indoor environment is nothing short of comfortable. Trust us to bring high-efficiency, high-comfort HVAC solutions to your doorstep.
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).