LG R32 Central Heat Pump | 1 Ton - 12,000 BTU

A 1-tonne central heat pump designed for our winters and summers (and for truly consistent comfort)

In Montreal , Laval , Longueuil , and on both the North and South Shores , you can experience four seasons in a single week. This reality directly influences how a central heat pump should be chosen, installed, and adjusted. Homeowners want a discreet, efficient, and reliable system capable of cooling without excessively drawing on electricity, but also of providing stable heating when temperatures drop.

The LG R32 Central Heat Pump | 1 Ton - 12,000 BTU fits perfectly into this design: a capacity suited to smaller areas, well-insulated units, or targeted zones within a home (floor, condo, small single-family dwelling), with the major advantage of ducted comfort . This type of installation aims for a tangible result: a more uniform temperature from room to room, fewer hot and cold spots, and a feeling of comfort that depends not only on the thermostat but also on the quality of the air distribution.

At AirGreen , we appreciate this format when it's carefully selected. A properly sized central heat pump becomes a highly precise comfort tool. Conversely, a unit that's too large or poorly integrated into the ductwork can give the impression of being "efficient" without actually being pleasant. Our job is to avoid this pitfall: we look for the right capacity, the right airflow, and a commissioning process that delivers the expected performance in real-world use.

Why “1 tonne – 12,000 BTU” might be exactly what's needed (or not at all)

In discussions about submitting a bid, we often see a misconception: “bigger” is supposedly “more comfortable.” In residential HVAC, this is rarely true.

A capacity of 1 tonne (12,000 BTU/h) is appropriate when:

• The house is well insulated (energy renovation, high-performance windows, improved airtightness),

• the area to be covered is reasonable (or a specific area is targeted),

• The ductwork system is suitable and can provide a consistent airflow.

• We are looking for a machine that works for a long time at moderate speed, rather than starting/stopping constantly.

This last point is crucial: when a system operates too intermittently, it cools quickly… but dehumidifies less effectively , and the house can become uncomfortable even at a comfortable temperature. In several projects in Montreal (renovated duplexes) or Longueuil (houses improved over the years), proper sizing has been the difference between “it works” and “it’s truly comfortable.”

Understanding this type of central heat pump: the outdoor unit and the indoor unit, and what difference they make.

A central heat pump is a complete system. Comfort does not only come from the outdoor unit; it also depends on the indoor module (air handler), the ductwork, the return air, the quality of the seals, the drainage, the settings, and even how the air is drawn back into the house.

The “multi-position” indoor unit: a real advantage in buildings here

The term “multi-position” is often underestimated. Yet, in Montreal and several areas of the South Shore , mechanical spaces are rarely “perfect”:

• basement with low ceiling,

• mechanical wardrobe,

• technical area near the laundry room,

• suspended ceiling

• horizontal installation in a confined space.

A multi-position indoor unit allows for better adaptation to these constraints without improvisation. And when the integration is clean, future maintenance is simpler (access to filters, drainage, components). For a homeowner, this translates into fewer surprises and greater system longevity.

A central heat pump is not just for heating/cooling: it's also about comfort management.

In practice, a well-tuned central system influences:

• temperature uniformity between rooms,

• the sensation of a draft (or its absence),

• the noise level,

• humidity in summer,

• the stability of the heating during cold periods.

That's why, at AirGreen , we always approach a central heat pump as a comprehensive project: the machine + the air + the house .

Productivity, efficiency, and what we actually feel on a daily basis

Efficiency indicators are useful for comparing systems, but they don't tell the whole story. The final performance also depends on the installation and settings.

What seasonal efficiency means for your bill

An efficient heat pump is one that:

• reaches the required temperature with less energy,

• maintains this temperature without excessive variations.

• avoids overheating or overcooling,

• works in a stable manner rather than in aggressive cycles.

In our projects in Laval and on the North Shore , we often encounter homes with existing ductwork: if air circulation is poor, even an excellent unit can seem less efficient. Conversely, when we correct the weak points (air recirculation, leaks, balancing), we see a noticeable difference: more consistent comfort, less noise, and more logical energy consumption.

Modulation: the detail that makes comfort feel “natural”

A system that can adjust its power over a wider range is generally more pleasant:

• It prevents him from catching a cold.

• It maintains humidity at a more comfortable level.

• It reduces temperature variations,

• It can be more discreet in everyday life.

This behavior is particularly appreciated in homes where occupancy changes (teleworking, children, closed rooms), or in dwellings where certain areas have different exposures (sun on the south side, shade on the north side).

Heating performance in Quebec: what really matters during cold weather

Heating is often the deciding factor. Many homeowners want to know: “Will it heat up when it’s very cold?”

The answer depends on several factors:

• the system's ability to maintain performance at low temperatures,

• the building envelope,

• air distribution,

• defrosting and control settings,

• the outdoor installation (snow, ice, air circulation).

The location of the outdoor unit: small choice, big impact

In Montreal (alleys, backyards, stairs), in Longueuil (more open lots), or on the South Shore (winds, blowing snow), the outdoor unit must be installed intelligently:

• stable and elevated base when relevant

• Clear clearances are maintained to allow for proper breathing.

• access for maintenance and defrosting,

• avoidance of areas where snow naturally accumulates.

We've seen cases where a unit installed too close to a wall, too low, or in a snow drift zone works… but loses stability during harsher conditions. The goal is to protect performance and longevity.

Defrosting: understanding without dramatizing

In winter, a heat pump may defrost. That's normal. What isn't normal is defrosting that's too frequent, too long, or noisy, often caused by:

• bad location

• limited air circulation,

• clogged coil,

• Inadequate drainage,

• Installation or settings not optimized.

Preventive maintenance and careful installation reduce these situations.

Noise and acoustic comfort: a priority in urban areas

The noise doesn't come solely from the outdoor unit. In a central installation, you must consider:

• vibration (supports),

• air noise (excessive flow rate, ducts that are too small, unsuitable vents),

• air return (whistling, poorly sized grilles),

• the quality of the transitions (plenums, tight elbows).

Our typical adjustments for a quieter installation

In several projects in Montreal and Laval , we are implementing simple but effective measures:

• anti-vibration mounts when required,

• adequate insulation of sensitive conduits

• correction of sections of ducts that restrict flow

• balancing of the outlets and adjustment of the flow rate,

• improved air return to reduce speed.

These are interventions that make the system more pleasant to use on a daily basis, especially in homes where the mechanical space is close to the bedrooms.

Electricity, safety, and compliance: the foundation of a trouble-free installation

A central heat pump doesn't tolerate sloppiness. Electrical power, protections, and compliance must be addressed seriously.

Why we always check the electrical environment

In some older homes in Montreal or on the North Shore , the signs have been altered over time. Our approach is to:

• validate the panel's capacity,

• confirm the correct type of circuit breaker.

• ensure that the wire gauge is appropriate,

• check the cleanliness and safety of the connection,

• avoid “temporary” solutions that become permanent.

A reliable HVAC system starts with a solid electrical foundation.

Piping, waterproofing, drainage: the invisible elements that make all the difference

A large part of the performance lies in what we don't see:

• quality of the fittings,

• line insulation,

• logical progression,

• waterproofing,

• clean and safe drainage.

Drainage: preventing water instead of repairing it

In air conditioning (and sometimes heating), condensate management is essential. We emphasize:

• correct slope

• Siphon and protective covers where required.

• prevention of backflows,

• Secure exit

• access for maintenance.

Drainage problems are among the most frequent in service, and they are largely avoidable with rigorous execution.

AirGreen Case Studies: Real-Life Situations in Greater Montreal

Case 1 — Montreal: renovated plex, existing ducts, objective of stable comfort

In a Montreal neighborhood where energy-efficient renovations have improved the building envelope, the homeowner wanted a discreet central system. The challenge wasn't the machine, but the air:

• Insufficient air return,

• uneven distribution between rooms,

• Air speed too high in some branches.

By adjusting the air return, reducing constrictions, and balancing the vents, the comfort level became much more consistent. The owner particularly noticed a difference in the evening and at night: fewer fluctuations, less noise, and a more "natural" feel.

Case 2 — Laval: single-family home, humid summer, discomfort despite low temperatures

The customer lowered the thermostat but complained of a sticky feeling. Our analysis showed:

• cycles were too short previously (old system).

• airflow to be optimized,

• distribution to be balanced.

A well-sized and adjusted central installation made it possible to improve dehumidification and stabilize the temperature without overconsumption.

Case 3 — Longueuil / South Shore: Location constraints and close proximity

The owner wanted to minimize noise and avoid snow problems. We prioritized:

• breathable location

• stable support

• A clear strategy against accumulation,

• clean and insulated connections.

The result: a discreet and more stable system during winter episodes where snow and ice can complicate things.

The most common mistakes (and how to avoid them)

1) Oversize “to be sure”

Oversizing often creates:

• short cycles,

• discomfort,

• less efficient dehumidification

• Premature wear,

• increased noise.

Proper sizing is more beneficial than overcapacity.

2) Ignore existing conduits

A network of conduits can be:

• too small

• fleeing,

• poorly balanced

• poorly designed over the course of renovations.

We treat the network as a component of the system, not as a detail.

3) Neglecting HVAC maintenance

Reduced preventative maintenance:

• performance declines,

• the noises,

• unexpected stops,

• drainage problems,

• fouling increases fuel consumption.

HVAC Maintenance: A simple plan that protects your investment

For a central heat pump, we generally recommend:

• Checking and replacing/cleaning the filter as needed.

• drainage inspection

• inspection of the coils (cleanliness),

• checking electrical connections

• general control of performance and settings,

• confirmation that the air distribution remains balanced.

In urban environments (dust, renovations, traffic), maintenance can be even more critical. A neglected filter can alter static pressure, increase noise, and reduce efficiency.

Why choose AirGreen for your LG R32 central heat pump

We approach each project with a clear idea: to deliver stable comfort and a durable system, not just a “functional” installation.

At AirGreen , we focus on:

• a realistic assessment of your needs (house, insulation, habits),

• a clean and compliant HVAC installation

• precise adjustments (airflow, distribution, noise),

• a serious commissioning,

• consistent after-sales service and HVAC maintenance.

Our experience in Montreal , Laval , Longueuil , and on both the North and South Shores has taught us one thing: two houses can look identical on paper but behave very differently. That's why we prioritize on-site observation and technical decisions that protect your comfort.

Conclusion

If you are considering the LG R32 Central Heat Pump | 1 Ton - 12,000 BTU for your property in Montreal , Laval , Longueuil , on the North Shore or the South Shore , we can quickly validate if this format is ideal for your building, your ducts and your insulation level.

Contact AirGreen for an on-site estimate, clear technical advice, and a complete proposal for your HVAC installation and maintenance .