Mitsubishi Electric · Air Conditioner
Mitsubishi M-Series (MSZ-GS)
The Mitsubishi M-Series (MSZ-GS) is a wall-mounted ductless mini-split built for Toronto homes that have no ductwork, a finished attic or addition, or one room that never cools down. It pairs an outdoor inverter condenser with a slim indoor head, so you get up to 28.4 SEER2 cooling without tearing into walls for ducts. Megacity HVAC installs and services these across the city.
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Why Toronto Homeowners Choose the Mitsubishi M-Series (MSZ-GS)
A Good Fit If
Manufacturer Specs
- Series
- M-Series (GS) wall-mount
- Efficiency
- Up to 28.4 SEER2 (9k model)
- Type
- Variable-capacity inverter (ductless)
- Indoor sound
- As low as 19 dB(A)
- Refrigerant
- R-410A
- Capacity
- 6,000 – 24,000 BTU/h · single & multi-zone
- Compressor warranty
- 10-year (with registration)
- Parts warranty
- 10-year (with registration)
- Certifications
- ENERGY STAR® Certified
Specs published by Mitsubishi Electric.
Trusted Equipment Brands We Install & Service
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Lease-to-Own Through Enbridge Sustain
Get a new furnace, AC, heat pump, or water heater installed with nothing down. As an Enbridge Sustain Trusted Partner, we make a new system affordable from day one.
- No upfront cost: $0 down on approved credit
- Maintenance and repairs included for the term
- Buyout option: Sustain owns the equipment during the term
Mitsubishi M-Series (MSZ-GS): FAQ
Will a Mitsubishi MSZ-GS cool a whole house, or just one room?
It depends how you set it up. A single indoor head cools one zone, typically one room or an open area, and the MSZ-GS ranges from 6,000 to 24,000 BTU/h. For a whole house you'd run a multi-zone setup with several heads on one or more outdoor units. We size it during the in-home visit based on your room sizes, ceiling height, and sun exposure rather than guessing from a chart.
How efficient is it compared to a regular window or central AC?
The MSZ-GS reaches up to 28.4 SEER2 on the 9,000 BTU model, and it's ENERGY STAR certified. The inverter compressor adjusts its output to the room load instead of running flat-out and shutting off, which is where most of the efficiency comes from. A window unit can't match that, and it lets you cool only the rooms you use rather than the whole house.
Is the install messy? I don't have any ductwork.
That's exactly what ductless is for. The indoor head mounts on the wall and connects to the outdoor unit through a small line set that needs only a roughly 3-inch hole through the exterior wall, no ducts. A standard single-zone install is usually a one-day job. We'll walk the house with you first to choose head placement and where the outdoor unit sits.
What warranty comes with it?
The MSZ-GS carries a 10-year compressor warranty and 10-year parts warranty when the unit is registered after installation. We handle the registration as part of the job so the coverage is in place. Note this is a cooling unit, so HVAC heat-pump rebates don't apply to it. If you want a system that also qualifies for those, ask us about heat-pump options.
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Tell us about your home and we will give you honest pricing and sizing for the Mitsubishi M-Series (MSZ-GS), installed across Toronto and the GTA.
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