Installation of a Tosot LomoPlus UltraHeat TripleZone Heat Pump in Saint-Lambert
Transform your home with the silent power of Tosot LomoPlus UltraHeat. Efficiency and tranquility in one elegant package.
- City
- Region
- Equipment
- Brand
- Challenges
- Published
The job on one screen
The article, chapter by chapter
A Perfect Blend of Efficiency and Aesthetics
AirGreen is proud to showcase a recent, intricate HVAC installation at a residence in Saint-Lambert, part of the picturesque South Shore of Montréal. Our mission is to provide seamless comfort across all seasons, and the Tosot LomoPlus UltraHeat TripleZone Heat Pump stands testament to this commitment. This project not only met but exceeded the homeowner's expectations, combining top-tier technology with discreet elegance.
Understanding the Project: High Demands and High Performance
The homeowner's requirements were specific: an HVAC system that could deliver robust performance without disturbing the peace of the household. The chosen model, the Tosot LomoPlus UltraHeat, features a 24 000 BTU compressor and three 9 000 BTU indoor units. This configuration ensures that each room maintains an optimal temperature, tailored to the preferences of its occupants.
Challenges Overcome with Expertise
The installation posed several challenges that tested the limits of conventional HVAC solutions:
- Strategic Placement: One of the indoor units was to be installed on the opposite side of the house, in the bedroom. Ensuring minimal noise while maximizing efficiency was crucial, as the homeowner valued undisturbed sleep above all.
- Aesthetic Integration: Running the necessary piping and wiring from the outdoor unit to the indoor units without compromising the home’s aesthetic required a thoughtful and innovative approach.
- Environmental Efficiency: With an Energy Star® rating and a remarkable 23.0 SEER efficiency, the LomoPlus UltraHeat not only promises significant energy savings but also maintains a low environmental footprint.
Technical Excellence and Silent Operation
Equipped with GREE’s advanced two-stage Inverter technology, the system maintains up to 80% heating capacity even at -30°C, ensuring comfortable indoor temperatures during the harsh Canadian winters. This is complemented by:
- Intelligent Defrost: Optimizes the defrost cycle to enhance energy efficiency.
- Whisper-Quiet Operation: At only 60 dB(A), the unit’s sound pressure level is impressively low, ensuring that sleep patterns remain undisturbed.
Sleek Design Meets Functionality
The Tosot LomoPlus UltraHeat system is not only robust in performance but also in its design:
- Compact Units: The sleek dimensions allow for more flexible installation options.
- Self-Diagnosis Technology: Alerts technicians to any issues, reducing maintenance time.
- Wireless Connectivity: Adjust settings via smartphone for ultimate convenience.
Customer Satisfaction: A Story of Comfort and Joy
The installation was completed with precision and care, resulting in a very satisfied customer who appreciated both the product’s performance and the aesthetic way in which it was integrated into his home. The project’s success was marked by:
- Enhanced Comfort: Tailored heating and cooling, ensuring comfort from the scorching summers to the freezing winters.
- Economic Savings: The system’s high efficiency translates into lower energy bills and was eligible for a $2148 provincial grant through the LogisVert Program by Hydro-Québec.
Why Choose AirGreen?
With every installation, AirGreen aims to ensure that comfort and efficiency go hand-in-hand. We are trusted professionals in the HVAC industry, recognized for our commitment to quality and customer satisfaction. Our installations are not just about placing a unit; they are about bringing a holistic improvement to your living spaces.
The job tools
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.
How the job unfolds
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 we check on a job like this one
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
An on-site estimate, the right capacity, the right equipment.
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).