Ductless Double Zone Heat Pump Tosot Lomo 23 SEER Compressor 18 000 BTU Montreal
The Tosot Lomo 18 000 multi-zone heat pump heats and cools 2 rooms with a single outdoor unit., heats down to −20 °C. 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 18,000 BTU we sell. Figures come from the manufacturer’s data and the AHRI certification.
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 2 heads.
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.
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.
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.
Where it ranks among same-size multi-zone systems.
Compared with the 48 multi-zone systems of 18,000 BTU we sell. 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.
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.
Installation and Distribution of a Multi Zone with two (2) zones Heat Pump. Tosot Lomo 23 SEER Wall Mounted Mini Split with 18 000 BTU Compressor in Greater Montreal.
HIGH EFFICIENCY WALL MOUNTED HEAT PUMPS OF 18, 24, 30, 36 and 42 000 BTU
Up to 23 SEER and 11 HSPF
1 in 3 wall units sold worldwide are manufactured by GREE. Professionals you can trust.
GUARANTEED COMFORT DURING HEAT WAVES OR FREEZING COLD
Equipped with GREE's two-stage Inverter technology, the LOMO 23 has achieved phenomenal efficiency levels of up to 80% heating capacity at outdoor temperatures of -20°C.
The LOMO series is both an attractive and affordable solution to your comfort needs, season after season. The heat pump model, equipped with a heating element, provides comforting warmth even in extremely cold temperatures down to -20°C.
TOSOT equips the outdoor units of the LOMO 23 with a heating base which prevents condensate from freezing and ensures full efficiency of the units and maximum heating operation.
SMART DEFROST
In heating mode, microprocessor-controlled defrosting is performed only when needed to maximize energy savings
MEMORY
Automatically restores previous settings after a power failure
COMPACT DESIGN
Reduced size of indoor and outdoor units for easy installation
GREAT LOVER
Ensure maximum airflow and increase comfort
SELF-DIAGNOSIS
The electronic control system of the unit automatically displays the error code for easy maintenance
The LOMO 23 heat pump is backed by an industry-leading 10-year parts, compressor and labor warranty.
| Compressor Power | Heads Power (Zones/Inside Units) |
| 18 000 BTU | 9 000 BTU + 9 000 BTU |
| 18 000 BTU | 9 000 BTU + 12 000 BTU |
| 18 000 BTU | 12 000 BTU + 12 000 BTU |
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.
How many heads can I connect?
Up to 2 on this outdoor unit. This product is configured for 2 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 3 combinations, from 9 + 9 to 12 + 12 (in thousands of BTU). Each head is sized for its room.
Down to what temperature does it heat?
Down to −20 °C.
Is it noisy?
Indoors, the reference head goes down to 29 dB(A). Outdoors, 56 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; labour is not included by the manufacturer. AirGreen extended warranty: available.
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.