Project

Installation of a Tosot Lomo 23 Mini Split in Senneville

Transform your home with the Tosot Lomo 23. Our latest installation in Senneville not only cools but charms, proving simplicity and efficiency can go hand-in-hand!

By AirGreen Climatisation & Chauffage Admin3 min read
Installation of a Tosot Lomo 23 Mini Split in Senneville
Installation of a Tosot Lomo 23 Mini Split in Senneville
–chapters in this story
3 minreading time
–type of installation
2024year published
The tour

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.

Generic diagram: wall-mounted heat pump, indoor and outdoor units

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.

  1. 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.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.

The job

A Breeze of Fresh Air: How a Simple Upgrade Made a Huge Difference

When it comes to home comfort, the right HVAC system makes all the difference, and AirGreen's latest project in Senneville showcases just how transformative a well-chosen and professionally installed mini split can be. Read on to discover the seamless integration of the Tosot Lomo 23, a model celebrated for its quiet operation and high efficiency—ideal for those looking to enhance their living space without disruption.

Project Overview: Understanding the Customer's Needs

Our recent installation in Senneville was driven by a straightforward yet vital need: additional air conditioning in a residential bedroom. The homeowner sought a solution that was not only effective but also unobtrusive and cost-efficient. The choice fell on the Tosot Lomo 23 mini split, renowned for its silent operation and impressive energy efficiency.

Choosing the Right Model: Tosot Lomo 23 Mini Split

Selecting the right air conditioning unit involves considering several factors, from cooling capacity to energy efficiency. The Tosot Lomo 23 stands out with its:

  • Cooling Capacity: 9,000 BTU, perfect for small to medium-sized rooms.
  • Energy Efficiency: Rated at 23.0 SEER, ensuring lower electricity bills.
  • Noise Level: With an interior sound pressure level as low as 29 dB(A), it's quieter than a whispered conversation.
  • Advanced Features: Optional WiFi connectivity and a smart defrost system enhance user convenience and efficiency.

This model was an ideal match for our client's requirements, offering both functionality and extra savings thanks to the Provincial Grant under the LogisVert Program by Hydro-Québec, reducing the overall investment cost significantly.

Installation Process: Precision and Professionalism

The installation of the Tosot Lomo 23 in Senneville was characterized by simplicity and meticulous attention to detail. Our team ensured a clean setup by:

  • Hiding Pipelines and Wires: All necessary conduits were discreetly placed behind the unit, preserving the room’s aesthetic and eliminating the need for additional renovations.
  • Optimal Placement: Ensuring the unit was positioned for maximum air distribution and accessibility for future maintenance.

These efforts resulted in a streamlined appearance and enhanced functionality, providing optimal cooling without compromising the room's design.

Benefits of the Tosot Lomo 23 Installation

Post-installation, the benefits of choosing the Tosot Lomo 23 were immediately apparent:

  • Dual Functionality: The unit acts as both an air conditioner and a heat pump, providing comfort year-round, from scorching summers to freezing winters.
  • Cost Efficiency: With the aid of government grants, the cost was less than a traditional air conditioner, providing both heating and cooling solutions.
  • Increased Property Value: The addition of a high-efficiency, energy-saving HVAC system is a desirable feature that enhances the overall value of the property.

Customer Satisfaction: A Testimony to Quality

The homeowner's satisfaction underscores the success of this installation. Thrilled with the quiet operation and the efficiency of the Tosot Lomo 23, the customer appreciated the professional demeanor of our installation team and the clean, hassle-free setup that required no subsequent modifications to their living space.

Why Choose AirGreen for Your HVAC Needs?

Choosing AirGreen means opting for:

  • Expertise: Years of experience ensuring each installation meets high standards of quality and efficiency.
  • Customer-Centric Solutions: We tailor our services to meet the specific needs of our clients, whether it's a simple residential setup or a more complex commercial project.
  • Quality Products: We partner with leading manufacturers like Tosot to provide our clients with top-tier technology.

With AirGreen, transform your space into a haven of comfort and efficiency. Our commitment to quality and customer satisfaction makes us the preferred choice for HVAC services in Montreal and beyond.

The steps

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.

Step 1 of 9The on-site estimate

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.

  1. 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.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

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.

Size checkYour baseboards, in BTU/h
–BTU/h of installed electric heat

    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.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Going further

    Your own project, step by step

    Through the seasons

    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.
    At your place

    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.

    0 / 6 checked
    True or false

    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.

    2. You pick the capacity with a simple square-footage rule.

    3. A multi-zone connects several indoor heads to a single condenser.

    4. The disconnect can sit behind the patio furniture.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.

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    The on-site estimate is free and the quote follows within 24 hours.

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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).

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