Installation of a Tosot Lomo 23 Wall-Mounted Heat Pump in Lorraine, North Shore
Transform your bedroom into a haven of comfort with AirGreen’s latest installation, the Tosot Lomo 23. Silent, efficient, and perfectly personalized!
- City
- Region
- Equipment
- Brand
- Challenges
- Published
The job on one screen
The article, chapter by chapter
Why Choose a Discreet Comfort Solution for Your Home
A Personalized Installation Tailored to Your Needs
At AirGreen, we understand that comfort in your home extends beyond the living room. Our recent installation in Lorraine, North Shore, showcases our commitment to providing customized comfort solutions, even in the coziest corners of your home.
Client's Request: Personalized Comfort in the Bedroom
One of our loyal customers, pleased with a previous installation of an 18,000 BTU Tosot Lomo 23, sought a similar yet smaller solution for his bedroom. His main requirement? The tranquility and efficiency of his current system but tailored to a more intimate setting. Hence, he chose the 9,000 BTU model of the same heat pump, ensuring his bedroom becomes a personal oasis of comfort, without the need to keep his door open to the rest of his home.
Simplified Installation, Maximum Satisfaction
Effortless Process
This installation was marked by its simplicity. Our team, already familiar with the customer's home and preferences, executed the setup with ease. The new wall-mounted heat pump was installed in just the right spot to provide optimal air distribution throughout the bedroom.
Technical Excellence
The Tosot Lomo 23 is admired for its whisper-quiet operation and high-efficiency performance. It boasts a SEER efficiency rating of 23.0, making it one of the most energy-efficient models on the market. Notably, this heat pump maintains up to 80% of its heating capacity even at -25°C, thanks to GREE’s advanced two-stage inverter technology.
Specifications At a Glance:
- Cooling and Heating Capacity: 9,000 BTU
- Energy Star® Certification: Yes
- Optional WiFi Control
- Sound Pressure Level: As low as 29 dB(A) indoors
- Freon Type: R-410A
- Warranty Options: Up to 10 years for compressor, parts, and optional extended warranty
Client Feedback and Benefits
Another Satisfied Customer
Post-installation, our customer expressed immense satisfaction with the discrete yet powerful performance of the new unit. The ease of operation and the peace brought by its nearly silent functioning have significantly enhanced his comfort at home.
Cost Efficiency
By choosing AirGreen again, the client benefitted from a loyalty discount, further reducing the overall cost of installation. Additionally, the eligibility of this model for a $340 provincial grant under the LogisVert Program by Hydro-Québec underscored the financial savvy of his investment.
Why AirGreen Stands Out
Expertise and Reliability
With years of experience serving the regions of Montreal, Laval, Longueuil, North Shore, and South Shore, AirGreen is synonymous with reliability and professional service in HVAC solutions. Our expertise ensures that each installation is performed with meticulous attention to detail and tailored to the specific needs of our customers.
Comprehensive Service
From selecting the right model to the final installation and post-service support, AirGreen covers all aspects of HVAC installation. Our commitment to customer satisfaction is evident in our flexible warranty options and the technical support we offer.
Eco-Friendly and Economical
All our installations, including the Tosot Lomo 23, align with our vision of an eco-friendly future. Energy-efficient, equipped with the latest technology, and supported by provincial grants, our solutions offer both environmental and economic benefits.
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).