Installation of a Gree LOMO 23 Wall-Mounted Heat Pump in Saint-Constant
Unveil a story of unmatched comfort with Gree LOMO 23 in Saint-Constant! AirGreen crafts comfort with precision, leaving a trail of joy and satisfaction!
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.
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.
Crafting Comfort: A Tale of Precision and Satisfaction
Setting the Scene: Saint-Constant, South Shore
In the charming enclave of Saint-Constant on Montreal’s South Shore, a residence whispered for relief from the relentless swings of Canadian seasons. The second floor, a space of retreat and repose, bore the brunt of summer’s fury and winter’s chill. Enter AirGreen, armed with expertise and the Gree LOMO 23, ready to restore balance.
Gree LOMO 23: Unpacking Excellence
- Cooling and Heating Mastery: With a formidable 18,000 BTU cooling capacity and steadfast performance at -25°C, the Gree LOMO 23 is a sentinel of comfort.
- Silent Guardian: With interior sound levels oscillating between a whisper-quiet 39 and 47 dB(A), it’s comfort felt but not heard.
- Efficiency Personified: With a 20.0 SEER efficiency rating and Energy Star® certification, it’s a symphony of performance and savings.
Installation Chronicles: Precision Meets Aesthetics
The canvas was the second floor, and precision was non-negotiable. The Gree LOMO 23 had to be perfectly centered, a beacon radiating comfort evenly across the floor. Navigating through rooms and closets with finesse, our team laid pipes with the precision of a maestro wielding a conductor’s baton. Holes made, but none left behind, thanks to our collaboration with a skilled plasterer who not only sealed the gaps but also left behind a canvas painted to perfection.
Why Gree LOMO 23?
- Grants Galore: Eligible for Federal Grants (between $2,500 to $5,000) and a Provincial Grant of $620, the Gree LOMO 23 is not just an investment in comfort but also in savings.
- Warranty Wonderland: With a 10-10-10 warranty on compressor, parts, and labor, and an included extended warranty, it’s a decade of worry-free comfort.
- Tech-Savvy Comfort: Optional WiFi capability means comfort is always at your fingertips, wherever you are.
Customer’s Joy: The True Measure of Success
Thrilled is an understatement for our client’s reaction. The Gree LOMO 23 was not just an appliance; it was a promise fulfilled. The joy cascaded down the neighborhood, leading to another installation just two doors down, spreading comfort and joy in its wake.
AirGreen: Where Commitment Meets Excellence
At AirGreen, we don’t just install; we transform spaces, craft comfort, and build relationships. Each installation is a tale of commitment, expertise, and unmatched customer satisfaction, with the Gree LOMO 23 installation in Saint-Constant being the latest in our anthology of success stories.
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.
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 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.
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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
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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Every house has its constraints. We see them before we install.
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).