Installation of a Tosot LomoPlus UltraHeat Ductless Heat Pump in Saint-Laurent, Montreal
Witness how a simple HVAC installation in Saint-Laurent led to neighborly savings and tailor-made comfort with AirGreen!
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.
A Tale of Two Installations: How AirGreen Delivers Comfort and Efficiency to Saint-Laurent Homes
Introduction to Excellence
In the heart of Saint-Laurent, Montreal, a recent installation by AirGreen has once again demonstrated our commitment to delivering high-quality, efficient heating solutions to our clients. The project involved the installation of the Tosot LomoPlus UltraHeat Ductless Heat Pump, a model renowned for its efficiency and reliability. But this wasn't just any installation—it was a tale of neighborly observation leading to mutual benefit, showcasing our ability to respond swiftly and effectively to our customers' needs.
The Scene: Simple Yet Strategic
Our journey begins in a cozy kitchen in Saint-Laurent, where the need for a heating and cooling solution presented itself. The customer, seeking a system that was both efficient and discreet, chose the Tosot LomoPlus UltraHeat model. Noteworthy for its silent operation and high efficiency, this 9,000 BTU machine was the perfect fit for the space.
Key Features at a Glance
- Energy Star® Certified
- Efficiency: 38.0 SEER
- Cooling and Heating Capacity: 9,000 BTU
- Operational Sound Levels: Interior unit as low as 19 dB(A)
- Connectivity: WiFi-enabled
- Environmental Compliance: Uses R-410A refrigerant
Customer-Centric Installation
The installation was marked by our team's meticulous approach to ensure a clean and professional setup. All electrical wiring and piping were strategically concealed behind the unit, which not only preserved the kitchen’s aesthetic but also eliminated the need for any post-installation renovations. This attention to detail is reflective of our commitment to non-intrusive installations and customer satisfaction.
Unexpected Turn: The Neighbor's Inquiry
While our team was busy at work, the visual appeal and efficiency of our operations caught the eye of the customer's neighbor. Intrigued by the fuss-free process and the sleek design of the installed unit, the neighbor requested a similar installation. What followed was an excellent example of our ability to leverage group discounts and offer even more value to our clients. Both apartments, mirroring each other in layout and needs, were equipped with the same Tosot model, fostering a sense of community and shared comfort.
The Group Discount Advantage
This scenario highlights a significant benefit of choosing AirGreen: the possibility of group discounts. By coordinating installations within the same vicinity, we can optimize our resources and pass on the savings to our customers, a testament to our dedication to affordability and service excellence.
Performance and Peace of Mind
Each LomoPlus UltraHeat unit is designed to withstand the rigors of the Canadian climate, maintaining up to 80% heating capacity at chilling temperatures as low as -30°C. This capability is complemented by a 10-year warranty on parts and compressor, assuring long-term reliability and performance.
Smart Features for Enhanced Comfort
- Two-Stage Compressor: Delivers optimal performance and energy efficiency.
- Intelligent Defrost: Minimizes energy loss by activating only when necessary.
- Wireless Control: Adjust settings remotely for maximum convenience and energy savings.
- Turbo Mode: Quickly achieves the desired indoor temperature.
Conclusion: Why AirGreen?
Our recent installations in Saint-Laurent not only highlight the advanced features of the Tosot LomoPlus UltraHeat but also underscore our dedication to customer satisfaction and community engagement. With AirGreen, expect a seamless installation process, robust support, and a system that adapts to your needs while enhancing your living environment.
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).