LG Multi F LGRED R32 Heat Pump | 2 Indoor Units - 1 Compressor 30000 BTU
The LG Multi F LGRED R32 30 000 multi-zone heat pump heats and cools 2 rooms with a single outdoor unit. it delivers 19,900 BTU/h at −8 °C, heats down to −25 °C and qualifies for a $2,388 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
2 rooms, one outdoor unit.
Compared with the 48 multi-zone systems of 30,000 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 4 heads and modulates from 10,248 to 33,150 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 76 % 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 48 multi-zone systems of 30,000 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 high-end, multi-zone solution designed for Quebec's climatic realities
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 , condominiums in Longueuil , modern residences on the South Shore , and buildings more exposed to wind on the North Shore . The LG Multi F LGRED R32 – 30,000 BTU heat pump is one of the solutions we recommend when heating needs are specific, spread across multiple zones, and when winter heating performance is a non-negotiable requirement.
This system combines a single LGRED outdoor compressor with two indoor units , with the option to expand to four zones depending on the building's configuration. It is ideal for homeowners who want precise control over comfort without increasing the number of outdoor units or compromising aesthetics or energy efficiency.
Why the Multi F concept is relevant in our HVAC installations
In many projects completed by AirGreen, we observe that heating and cooling needs vary significantly from room to room: upstairs bedrooms, a south-facing living room with windows, a separate office, a semi-basement. A multi-zone system allows for room-by-room temperature adjustment while sharing the outdoor compressor.
With the LG Multi F LGRED , this logic is taken further thanks to a very precise modulation of the inverter compressor and advanced electronic management of the R-32 refrigerant flow, which is more efficient and has a lower environmental impact than previous generations.
Actual performance in heating and air conditioning
Capacity and behavior in winter conditions
The KUMXA301A outdoor unit offers a 30,000 BTU cooling capacity and maintains stable heating performance down to -25°C , a critical threshold for Quebec. During our installations on the North Shore , where temperatures and wind exposure are more severe, this stability makes a real difference to comfort and energy consumption.
Contrary to some overly optimistic marketing claims, the performance figures for this system remain consistent and credible:
-
COP in heating (standard conditions) around 3.7 , which means that for every kilowatt of electricity consumed, more than three kilowatts of heat are produced.
-
Reliable operation over a wide temperature range, thanks to LGRED technology designed for cold climates.
Efficient and quiet air conditioning
During the summer months, especially during heat waves in Montreal and Laval , the 30,000 BTU capacity helps maintain a stable temperature even when two zones are operating simultaneously. The system automatically adjusts its output based on actual demand, preventing short cycling, reducing noise, and extending component lifespan.
The sound pressure levels of the indoor units can go down to around 27 to 32 dB(A) depending on the model chosen, a point often appreciated by our customers who install a unit in a bedroom or home office.
Flexibility of indoor units and adaptation to the building
Wide selection of interior designs
One of the major advantages of the LG Multi F is its compatibility with several indoor unit formats:
-
high-efficiency wall-mounted units (9,000 to 24,000 BTU),
-
different sizes to fit the width of the walls,
-
Automatic control of vertical and horizontal flaps for uniform air distribution.
At AirGreen, we often combine a more powerful unit in the main living area and a more compact unit in a bedroom or secondary space, in order to optimize comfort without oversizing.
Independent management of areas
Each zone has its own control: temperature, heating or cooling mode, and ventilation speed. In multi-unit residential projects in Longueuil or on the South Shore , this independence is a major advantage in avoiding comfort conflicts between residents.
HVAC Installation: What Our Experience Changes in Concrete Terms
Precise sizing and refrigeration network
A multi-zone system requires a rigorous HVAC installation : pipe lengths, elevation differences, and load balancing between indoor units. We consistently adhere to the required technical parameters to ensure the system's long-term reliability.
We have seen, during rework carried out by other contractors, that errors in calculation or installation can lead to:
-
capacity losses,
-
excessively frequent defrosting cycles,
-
premature wear of the compressor.
It is precisely in these aspects that AirGreen's field expertise makes the difference.
Concrete example of an installation in Laval
In a two-story house in Laval , the owners wanted to air-condition the open ground floor and efficiently heat two upstairs bedrooms without adding multiple outdoor units. We installed an LG Multi F LGRED 30,000 BTU system with two wall units, planning from the outset for the possibility of a future third zone.
Result: stable comfort, controlled consumption and no noise complaints, even in intensive heating mode in January.
R-32 refrigerant: efficiency and compliance
Choosing R-32 meets increasingly stringent environmental requirements. It offers better energy efficiency and a lower charge than older refrigerants. For our customers in Montreal and the Montérégie region , it also guarantees long-term compliance with evolving regulations.
Subsidies and added value
This system is eligible for the LogisVert provincial grant , with an amount of up to $2,388 depending on the configuration and the application date. At AirGreen, we assist our clients in understanding the criteria and preparing the necessary documents, thus avoiding many unnecessary delays.
Maintenance and durability
A well-maintained multi-zone system retains its performance for many years. We recommend:
-
annual HVAC maintenance ,
-
regular cleaning of the filters
-
a periodic check of pressures and electronic parameters.
These simple actions help to maintain performance and reduce the risk of breakdowns during the cold season.
Why choose AirGreen for an LG Multi F LGRED
-
In-depth technical analysis prior to each project.
-
Installations carried out by certified refrigeration technicians , experienced in multi-zone systems.
-
Price transparency and advice based on real performance.
-
Strong local presence in Montreal , Laval , Longueuil , North Shore and South Shore , with accessible after-sales service.
A solution suitable for both residential and multi-unit dwellings
Whether for a primary residence, a duplex, or a small apartment building, the LG Multi F LGRED R32 – 30,000 BTU heat pump offers a solid balance of flexibility, energy efficiency, and reliability in cold climates. Properly designed and installed, it becomes a lasting investment, both for comfort and for the building's value.
Take action with AirGreen
For a detailed quote , a personalized analysis of your project, or questions about HVAC installation and available subsidies , contact AirGreen directly. Our team will be happy to offer you a solution perfectly tailored to your needs, right here in Quebec.
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: 19,900 BTU/h at −8 °C, 23,000 at −15 °C.
How many heads can I connect?
Up to 4 on this outdoor unit. This product is configured for 2 heads.
How much is the LogisVert grant?
$2,388 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 3553134. 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.