Installation of a Tosot LomoPlus UltraHeat DoubleZone Heat Pump in Blainville, North Shore
Transform your home with the whisper-quiet and efficient Tosot LomoPlus UltraHeat. Installed by the trusted pros at AirGreen—where comfort meets innovation.
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A Symphony of Efficiency and Silence
Welcome to another showcase of precision and professionalism by AirGreen, your trusted HVAC specialists in Montréal, Laval, Longueuil, North Shore, and South Shore. Today, we're excited to share details of our recent project in Blainville, where we replaced an older, noisier heat pump with the cutting-edge Tosot LomoPlus UltraHeat, a model that sings a tune of silence and efficiency.
Project Overview
Location: Blainville, North Shore
Machine Type: DoubleZone Heat Pump
Brand and Model: Tosot LomoPlus UltraHeat
Configuration: 24,000 BTU Compressor with two 12,000 BTU indoor units
This installation was not just about upgrading to a new unit but enhancing the overall comfort and peace in the client’s home. The old heat pump was a source of constant noise and frequent breakdowns, a stark contrast to the serene and robust performance of the new Tosot model.
Challenges Overcome with Precision
Our team faced the challenge of replacing the existing unit without adding any new holes to the client's property—an essential request from the homeowner. Our approach was meticulous:
- Preservation of Existing Infrastructure: We reused all the original pipes and electrical wiring, ensuring no additional disruptions to the aesthetics or integrity of the home.
- Comprehensive Inspection and Cleaning: Every step was taken to ensure longevity and performance. We meticulously inspected the old pipes for potential leaks and thoroughly cleaned them to prevent any dirt from impairing the new compressor.
Technical Excellence Unleashed
The Tosot LomoPlus UltraHeat is not just any heat pump. It embodies advanced technology with features that set it apart:
- Energy Star® Certification assures high efficiency.
- WiFi Enabled for easy control and monitoring.
- Exceptional SEER Rating of 23.0 for supreme efficiency.
- Robust Warranty: 10 years for compressor, parts, and labor.
- Low Noise Operation: At just 60.0 dB(A), it whispers rather than roars.
- R-410A Refrigerant: Eco-friendly and effective.
- Heating Capacity: Remains reliable even at -30°C, proving its mettle in the harsh Canadian winters.
Client Testimonial: A Story of Satisfaction
Our client’s reaction to the installation process and the performance of the new Tosot heat pump was nothing short of thrilled. They were particularly impressed by the quiet operation and the careful attention to detail our team displayed. Their satisfaction echoes in their words: "I was very surprised by the dedication to do the job right. Not a single step skipped, and everything done cleanly and professionally."
Why Choose AirGreen?
At AirGreen, we don’t just install HVAC systems; we enhance lifestyles. Our commitment to quality, customer satisfaction, and technical excellence makes us the preferred choice for HVAC solutions. Whether you’re battling the scorching summer heat or the icy cold of winter, our installations guarantee comfort all year round.
- Trusted Professionals: Decades of combined experience and a deep understanding of both traditional and cutting-edge HVAC technologies.
- Guaranteed Comfort: From the hottest days to the coldest nights, we ensure your home remains a sanctuary of comfort.
- Efficiency and Sustainability: We choose products like the Tosot LomoPlus UltraHeat that not only perform exceptionally but also contribute to a greener planet.
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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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).