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Installation of a Tosot LomoPlus UltraHeat Wall-Mounted Air Conditioner in Montréal

Discover the comfort of a Tosot LomoPlus UltraHeat, expertly installed by AirGreen in Montréal, offering top-notch efficiency and grant eligibility for year-round climate control.

By AirGreen Climatisation & Chauffage Admin5 min read
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Installation of a Tosot LomoPlus UltraHeat Wall-Mounted Air Conditioner in Montréal
Installation of a Tosot LomoPlus UltraHeat Wall-Mounted Air Conditioner in Montréal
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Professional Installation of Tosot LomoPlus UltraHeat 24,000 BTU Air Conditioner in Montréal

Keeping Montréal Cool and Cozy – AirGreen's Expert Installation for Year-Round Comfort

As the seasons shift and Montréal prepares for colder temperatures, our team at AirGreen understands the importance of a reliable heating and cooling system that can withstand the extremes. Recently, we had the pleasure of installing the Tosot LomoPlus UltraHeat 24,000 BTU wall-mounted air conditioner for a customer in Montréal, an ideal choice for those looking to stay comfortable throughout the year, whether facing the warmth of summer or the bitter chill of winter.

Why the Tosot LomoPlus UltraHeat is Perfect for Canadian Weather

Montreal’s weather can be unpredictable, which is why choosing an HVAC system that works effectively in all temperatures is crucial. The Tosot LomoPlus UltraHeat model is built with Canadian winters in mind. Capable of providing heating at temperatures as low as -30°C, this model ensures that even on the coldest days, you remain warm and cozy indoors. With a cooling capacity of 24,000 BTU, it also has the power to keep any large space cool and comfortable during those humid Montréal summers.

Key Features of the Tosot LomoPlus UltraHeat 24,000 BTU

  • Impressive Efficiency: Boasting a 21.5 SEER rating, this air conditioner is designed to operate efficiently, keeping energy consumption low while maintaining consistent indoor temperatures.
  • Advanced Technology: This model is equipped with GREE's two-stage inverter technology, which enhances efficiency and ensures optimal performance regardless of the external temperature.
  • Ultra-Low Noise Levels: With a sound pressure level of 34 dB(A) indoors, this unit operates quietly, ensuring a peaceful environment at home or work.
  • Extended Warranty Options: The Tosot LomoPlus UltraHeat includes a 10-year parts warranty for peace of mind, and customers can opt for an extended 10-year labor warranty for complete coverage.

Installation Details and Challenges – Making It Perfect

Located on the roof, this installation came with its unique set of challenges. Our experienced technicians needed to ensure the unit was securely mounted to withstand strong winds and other rooftop elements. Given the large size of the outdoor unit (38.5 x 16.8 x 31.1 inches), careful planning was required to provide both stability and optimal positioning for efficiency.

During the installation, our team meticulously measured and aligned the indoor and outdoor units to ensure seamless airflow and minimize any unnecessary strain on the system. This attention to detail is part of what makes AirGreen a trusted HVAC partner in the Montréal area. We understand that every installation site is unique, and we customize our approach to suit each setting.

The Financial Benefits – Eligible for Hydro-Québec's LogisVert Grant

An added benefit for our client was the $1,860 LogisVert Grant provided by Hydro-Québec. This grant helps offset the installation cost, making high-efficiency heating and cooling solutions more accessible. At AirGreen, we not only install high-performance systems but also assist clients in navigating these grants, ensuring they maximize their savings.

Technical Specifications of the Tosot LomoPlus UltraHeat

Interior Unit

  • Dimensions: 43.3 x 9.8 x 12.8 inches
  • Sound Level: 34-52 dB(A), ensuring a quiet indoor experience
  • Voltage: 220V
  • WiFi Enabled: Yes, control your unit remotely for added convenience

Exterior Unit

  • Dimensions: 38.5 x 16.8 x 31.1 inches
  • Sound Level: 59.0 dB(A)
  • Gas (Freon): R-410A for efficient cooling and heating
  • Pipes: 1/4 - 5/8 inch

Built for Comfort and Convenience – Features You’ll Love

The Tosot LomoPlus UltraHeat is designed not just for performance but also for user convenience. Features such as the I Feel technology, which allows the system to sense temperature from the remote control, ensure precision in maintaining your desired indoor climate. Additionally, the self-diagnosis system makes maintenance and troubleshooting more straightforward, as it alerts technicians to specific issues, saving time and reducing potential service costs.

Trust AirGreen for Your HVAC Needs in Montréal and Beyond

Choosing an HVAC system is an investment in comfort, efficiency, and long-term reliability. With AirGreen's professional installation services, you can rest assured that your equipment will be set up to perform at its peak. Our skilled technicians prioritize quality installation, ensuring the longevity of your HVAC system and maximizing its efficiency.

Final Thoughts – The AirGreen Advantage

Our recent installation of the Tosot LomoPlus UltraHeat 24,000 BTU air conditioner in Montréal reflects our commitment to quality and customer satisfaction. At AirGreen, we are dedicated to delivering comfort solutions that withstand the unique demands of the Montreal climate. We provide comprehensive HVAC services, from installation to maintenance, and guide you through the process of obtaining grants and rebates that make upgrading your system more affordable.

By choosing AirGreen, you’re choosing a company that values excellence, integrity, and the satisfaction of a job well done. If you're considering a new HVAC system or need expert advice on how to improve your home or office's climate control, contact us today. We look forward to helping you achieve the ultimate indoor comfort.

Your numbers

The job tools

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.

    The steps

    How the job unfolds

    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.
    The tour

    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.

    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.

    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
    Maintenance

    Good habits, once the unit is in place

    Six simple habits that keep the unit going. Your list stays on this device.

    0 / 6 checked
    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.
    For your project

    The right pages, at the right time

    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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    An on-site estimate, the right capacity, the right equipment.

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

    • RBQ licence5645-9605-01 · 15.8, 15.10, 16
    • EstimateOn site, free
    • QuoteWithin 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).

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