LG Multi F LGRED R32 Heat Pump | 3 Indoor Units - 1 Compressor 24000 BTU
The LG Multi F LGRED R32 24 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 17,800 BTU/h at −8 °C, heats down to −25 °C and qualifies for a $2,136 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
3 rooms, one outdoor unit.
Compared with the 59 multi-zone systems of 24,000 BTU we sell. Every number on this page carries its source.
The parts that make a multi-zone system.
Tap a part to learn more.
Outdoor unit
One compressor for the whole house. It supplies up to 3 heads and modulates from 10,248 to 28,500 BTU/h depending on what the rooms call for (NEEP).
Base pan heater
A heater keeps the outdoor unit’s base pan free of ice below 1 °C and during defrost (NEEP).
Refrigerant lines
One pair of lines per head.
Indoor heads
One head per room, each with its own remote and temperature. The combination is chosen in the “Zones” menu.
Control
Each zone is set separately, also from your phone.
Turn rooms on and off. Watch the power being shared.
One outdoor unit supplies every head: when several rooms call at once, they share its capacity. Pick an outdoor temperature.
Tell us your rooms. We tell you if this size is enough.
Pick the number of rooms and their size. The estimate targets a −15 °C day; it is a guide, the real calculation is done room by room at your home.
The whole series at a glance: find the box that fits you.
Each box is a product: the outdoor unit’s size, and the number of heads.
At −15 °C, it still delivers 91 % of its rated capacity.
Tap a temperature: certified capacity, efficiency and the cost of one hour of heating.
It slows down, it speeds up: the certified modulation range
Light bar: from minimum to maximum capacity. Dark mark: the rated value.
At every temperature, cheaper than baseboards.
Cost of one hour at full output, for the same heat delivered. Hydro-Québec Rate D, second tier: 11.142 ¢/kWh.
The official ratings, on the same scales as before.
SEER2, HSPF2 and EER2 come from the AHRI certification. The mark shows the median of the same-size multi-zone systems we sell.
A grant you can calculate, not guess.
The capacity at −8 °C comes from Hydro-Québec’s list of October 1, 2026. $120 per 1,000 BTU/h is the rate for ENERGY STAR cold-climate heat pumps (guide v1.10).
Where it ranks among same-size multi-zone systems.
Compared with the 59 multi-zone systems of 24,000 BTU we sell, using the LogisVert list figures. Weaknesses too, said plainly.
Against three other brands in its class.
Same rated size, other manufacturers. Pick the opponent.
One multi-zone or several wall units? Both sides, honestly.
We compare both options on your floor plan during the estimate.
What to know before installing a multi-zone system.
Dimensions, wiring and lines, drawn. Then our six steps.
The outdoor unit, dimensioned
One circuit for the whole house
Published sound levels, on one scale.
We use the outdoor figure to choose where the unit goes.
What is particular about this machine.
Only facts published by ENERGY STAR, NEEP or the manufacturer.
Every number, and where it comes from.
Each line carries its source; a line with no published value is not shown.
The manufacturer’s documentation, as PDF.
Everything we have written about this system.
A multi-zone solution designed for Quebec's climate and the realities of modern homes
At AirGreen, we have been installing multi-zone systems for many years in a wide variety of settings: single-family homes in Montreal, duplexes in Laval, triplexes in Longueuil, newer condos on the South Shore, and older residences on the North Shore. The LG Multi F LGRED R32 heat pump with a 24,000 BTU compressor and up to three indoor units perfectly fits this reality: offering a high-performance, flexible, and sustainable solution when a single system needs to serve multiple living spaces.
This type of configuration is often chosen when occupants wish to air condition and heat several independent zones without multiplying the outdoor units, whether for aesthetic, noise, space or municipal regulation reasons.
Why choose an LG Multi F LGRED R32 multi-zone heat pump?
A comfort-by-zone approach, without compromise
Unlike a simple wall-mounted system, a multi-zone heat pump allows you to control each room or zone independently. In practice, this means:
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A room kept at a cooler temperature at night
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A comfortable lounge in the evening
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A home office that is efficiently heated during the day
Each indoor unit adjusts its operation according to actual needs, which improves comfort and reduces unnecessary cycles.
One outdoor compressor for three indoor units
The KUMXA241A model can power up to three compatible indoor units while maintaining excellent operating stability. During our installations in Montreal and on the South Shore, this configuration is often chosen for:
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Multi-story houses
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Open-concept condos with adjacent enclosed rooms
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Multigenerational housing
This approach limits the external footprint while maintaining a high degree of freedom in interior design.
Actual performance in heating and air conditioning
Reliable heating down to -25°C
The LGRED series is designed for cold climates. In Quebec's winter conditions, this makes a real difference. The variable-speed inverter compressor precisely adjusts its power according to heating demand, which allows for:
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Stable heating during periods of extreme cold
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Fewer temperature variations
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A reduction in electricity consumption during milder periods
In several projects carried out by AirGreen in Laval and on the North Shore, this type of system has made it possible to reduce the dependence on electric baseboard heaters , while maintaining constant comfort throughout the dwelling.
Efficient and quiet air conditioning
With a nominal cooling capacity of 24,000 BTU , this system is perfectly suited to the hot and humid summers of Montreal and the Montérégie region. The indoor units offer:
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A well-distributed airflow
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Quiet operation, appreciated in bedrooms
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Precise control thanks to built-in Wi-Fi
R-32 refrigerant: a responsible and efficient choice
Switching to R-32 refrigerant gas offers a significant advantage:
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Reduced global warming potential (GWP) compared to older refrigerants
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Better energy efficiency per unit load
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Lower quantity of refrigerant required
In the context of current and future environmental standards, this choice contributes to the sustainability of the installation, a point often discussed with our clients in Montreal and Longueuil when selecting the system.
Key technical data of the LG Multi F LGRED R32 compressor
Without going into theoretical values that are not very representative of real-world situations, here are the technical elements that have a concrete impact during HVAC installation :
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Exterior model : KUMXA241A
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Cooling capacity : 24,000 BTU
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Maximum heating capacity at low temperatures : suitable for Quebec winters
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Voltage : 208-230 V
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MCA : 24 A
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MOP : 30 A
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Outdoor noise level : approximately 55 dB(A)
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Maximum number of indoor units : 3
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ENERGY STAR® and ENERGY STAR® Cold Climate certified
These characteristics serve as the basis for our precise calculation of loads and electrical sizing , in accordance with current standards.
HVAC installation: AirGreen's experience makes the difference
What we often see on the field
A poorly installed multi-zone heat pump can quickly lose its advantages: unbalanced flow, reduced heating performance, excessive noise, or unnecessarily high electricity consumption. At AirGreen, we learned, sometimes the hard way several years ago, that the success of a multi-zone system depends as much on the design as on the unit itself .
Our installation approach
For every project in Montreal, Laval, Longueuil, or on the South Shore, we:
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Let's verify the exact compatibility of the indoor units.
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Let's optimize the lengths of refrigeration pipes
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Let's respect the maximum elevations between units
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Let's adjust the load distribution by zone
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Let's program and test each unit individually
This rigor explains why our multi-zone installations maintain their performance year after year.
LogisVert subsidy: a real financial advantage
At the time of writing, this system is eligible for the LogisVert provincial grant , with an amount of up to $2,136 , depending on the final configuration and applicable criteria. We systematically support our clients in:
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Validation of eligibility
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Preparing the required documents
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Compliance of the facilities with the program requirements
Who is this system intended for?
The LG Multi F LGRED R32 24,000 BTU heat pump is particularly recommended for:
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Owners wanting a centralized but zoned solution
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Housing where outdoor space is limited
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Residential or multi-unit dwelling buildings
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Customers seeking a good balance between performance, reliability and environmental impact
Why entrust your project to AirGreen?
At AirGreen, we don't just sell a unit. We deliver a complete HVAC solution , tailored to the building, its actual use, and the local climate. Our clients in Montreal, Laval, Longueuil, the North Shore, and the South Shore choose us because:
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Our practical expertise in multi-zone HVAC installation
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Our prices are transparent and confirmed before work begins.
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Our certified and experienced refrigeration technicians
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Our $5,000,000 liability insurance
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Our support before, during and after installation
Speak to an AirGreen expert
If you are considering installing an LG Multi F LGRED R32 multi-zone heat pump , contact AirGreen for a personalized project analysis. We will take the time to assess your actual needs, confirm the ideal configuration, and offer you a sustainable, high-performance solution tailored to your property.
Contact AirGreen today for a detailed quote, technical consultation, or more information about this system.
Warranty: 10 years on the compressor, 10 years on parts and 6 years on labor, straight from the distributor.
What people ask us about multi-zone systems.
Can I heat one room and cool another at the same time?
No. On a multi-zone system like this one, every head works in the same mode, heating or cooling. Each room still keeps its own set temperature.
What happens when every room calls for heat?
They share the outdoor unit’s capacity: 17,800 BTU/h at −8 °C, 22,000 at −15 °C.
How many heads can I connect?
Up to 3 on this outdoor unit. This product is configured for 3 heads.
How much is the LogisVert grant?
$2,136 according to Hydro-Québec’s list of October 1, 2026. The grant never exceeds 100 % of the cost before taxes; apply within 9 months of installation.
Is it ENERGY STAR certified?
Yes, cold climate, ID 3553131. It also meets the ENERGY STAR Most Efficient criteria, according to the ENERGY STAR database.
Down to what temperature does it heat?
Down to −25 °C.
Is it noisy?
Indoors, the reference head goes down to 29 dB(A). Outdoors, 55 dB(A): we place the unit away from bedroom windows.
Why a multi-zone instead of several wall units?
One outdoor unit on the wall and one circuit. In return, the rooms share the capacity, and if the outdoor unit stops, every zone stops.
What does the warranty cover?
Our sheet lists 10 years on the compressor and 10 years on parts. AirGreen extended warranty: possible.
A multi-zone system is planned room by room. At your home.
We measure every room, draw the line route and choose the right head for each zone. The on-site estimate is free and the quote arrives within 24 h.