Installation of a Tosot Lomo 23 Wall-Mounted Heat Pump in Dorval, Montreal
Experience the seamless blend of cutting-edge technology and expert installation with AirGreen's latest project in Dorval. Find out why the Tosot Lomo 23 is making waves!
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A Seamless Experience with AirGreen: The Tosot Lomo 23 Installation in Dorval
The Perfect Location: Dorval, Montreal
Dorval, a picturesque suburb of Montreal, was the chosen location for our latest installation. Known for its serene environment and beautiful landscapes, it's no wonder our client wanted to ensure the utmost comfort for their home in this idyllic setting.
Introducing the Tosot Lomo 23
The Tosot Lomo 23 is not just any wall-mounted heat pump. It's a state-of-the-art machine that promises efficiency, silence, and durability. Here are some of its standout features:
- Cooling Capacity: A robust 12,000 BTU ensures your home remains cool even during the hottest summer days.
- Heating Capacity: Fear not the cold, for this machine can heat even at a chilling -25°C.
- Dimensions: With interior dimensions of 33.4 x 8.2 x 11.4 and exterior dimensions of 33.4 x 12.6 x 23.6, it's sleek and compact.
- Energy Efficiency: Boasting an Energy Star® certification and an efficiency of 22.0 SEER, it's designed to save you money.
- Warranty: A solid 10-year warranty on everything - compressor, parts, and labor.
- Connectivity: WiFi capabilities are optional, ensuring you can control your comfort from anywhere.
- Sound Levels: With an exterior sound pressure level of 54.0 dB(A) and an interior level ranging between 29 and 45 dB(A), it's whisper-quiet.
Why the Tosot Lomo 23 was the Perfect Choice
Our client had specific requirements: silence, efficiency, and a solid warranty. The Tosot Lomo 23, which was available at an attractive discount, checked all these boxes. Moreover, the machine's eligibility for both Federal and Provincial grants made it an even more appealing choice.
The Installation Process: Simple, Clean, and Professional
While the Tosot Lomo 23 is a marvel in itself, what truly sets AirGreen apart is our installation process. Here's a glimpse into our recent project in Dorval:
- Simplicity at its Best: Despite the advanced features of the Tosot Lomo 23, the installation was straightforward. Our team's expertise ensured that what might seem complex was executed seamlessly.
- No Hidden Charges: Our transparent pricing includes 15 feet of pipes and wires, ensuring our clients don't encounter unexpected costs.
- Satisfaction Guaranteed: Our client's reaction post-installation? Absolute delight. And that's what we aim for with every project.
Grants and Savings
One of the standout features of the Tosot Lomo 23 is its eligibility for grants:
- Federal Grant: Depending on the specifics, one can avail of a grant ranging from $2,500 to $5,000.
- Provincial Grant: An additional $385 can be availed as a provincial grant.
These grants, combined with the machine's energy efficiency, ensure that our clients not only get the best product but also significant savings in the long run.
AirGreen's Commitment
At AirGreen, every installation is a story of commitment, expertise, and customer satisfaction. Our project in Dorval is a testament to our dedication to providing the best HVAC solutions in Montreal, Laval, Longueuil, North Shore, and South Shore. With each installation, we don't just add a machine to a home; we add comfort, efficiency, and peace of mind.
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.
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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).