Mitsubishi Wall-Mounted Indoor Units
The efficient, quiet standard of ductless heating and cooling — the unit most of our customers put in bedrooms, living rooms and additions.
- Mitsubishi Diamond Contractor ELITE
- 12-year parts & labor warranty
- 180-Day Comfort Guarantee
- Veteran-owned since 2013
Small on the wall, big on the bill
A Mitsubishi wall-mounted unit hangs high on an exterior or interior wall, connected to the outdoor unit through a single 3-inch hole. It monitors the room, adjusts fan speed automatically, and throws air across the ceiling so you feel the temperature, not the draft. On low fan the FS series runs at 19 dB — quieter than a library. The i-see® sensor on premium models scans the room and directs air toward or away from people.
Wall units pair with Hyper-Heat outdoor units for 100% Capacity to -13°F, which makes them the workhorse of whole-home conversions off oil and propane across Upstate NY.
Specifications that matter
| Series | MSZ-FS (Hyper-Heat), MSZ-GL, MSZ-GS |
|---|---|
| Capacities | 6,000 – 24,000 BTU/h per unit |
| Sound (indoor, low) | as low as 19 dB |
| Heating | 100% Capacity to -13°F, operates down to -35°F (H2i®) |
| Efficiency | up to 33.1 SEER2 / 14.2 HSPF2 (single-zone FS) |
| Filtration | Multi-stage washable; optional deodorizing filter |
| Controls | Wireless remote standard; MHK2 wall thermostat, Comfort App optional |
| Warranty | Mitsubishi extended warranty registered at commissioning; 12-yr parts & labor with Elite Care Plan |
Exact model, capacity and efficiency ratings are selected per zone at your free estimate. Figures shown are typical for current Mitsubishi Electric residential lines.
Best for
- Bedrooms, living rooms, home offices, additions
- Whole-home multi-zone conversions from oil, propane or baseboard
- Replacing window air conditioners
- Cabins and camps with no ductwork
Questions about wall-mounted units
How high on the wall does it go?
Near the ceiling — typically 6–8 inches below it — on an exterior or interior wall with room for the line set to reach outside. It can go on an interior wall if we can route the line set through the attic or basement.
Does it need a wall outlet?
No. Indoor units are powered from the outdoor unit through the line-set bundle; the outdoor unit gets its own dedicated circuit from your panel.
How do I clean the filters?
Lift the front panel, slide the two mesh filters out, rinse, dry, replace. Every few weeks in heavy use, monthly otherwise. It takes two minutes and it's the single biggest thing you can do for efficiency.
Can it heat a large open floor plan?
Yes — an 18k or 24k unit covers a large open living/kitchen area. For a whole floor with separate rooms, a second unit or a ducted air handler usually works better than one oversized wall unit.
Will it drip?
Condensate from cooling drains through a line to the outside; we run it downhill with the line set. No pan to empty, no pump needed in most installs.
What's the price difference between FS and GL?
FS is the Hyper-Heat unit with the highest efficiency and the i-see® sensor; GL is the value line and still excellent for cooling-first or secondary-heat rooms. We spec FS for primary heat in our climate.
Rebates Available
New York homeowners switching from oil, propane or electric baseboard to a Mitsubishi cold-climate heat pump qualify for National Grid or NYSEG rebates, and Vermont homes qualify through Efficiency Vermont plus utility bonuses. Rebate amounts change by program and tier — we tell you exactly what your home qualifies for at the free in-home estimate and handle the entire application for you.
What is your oil, propane or gas heat really costing you?
Enter your ZIP, home size and current fuel. See your real annual cost, what a Mitsubishi heat pump would cost to run instead, and your 5-year cost of doing nothing — with current NY and VT rebates applied.
Prefer to talk? Book 24/7 at (518) 333-7431 — estimates, repairs & cleanings, any hour. Live person: (518) 719-5614, Mon–Fri 8–5.
- Your number, not an average. Modeled on your ZIP's climate, your fuel price and your system's age.
- Three paths compared. Single-zone, hybrid with your existing furnace, or whole-home Hyper-Heat.
- Rebates included. NYS Clean Heat and Vermont incentives factored in — we confirm your exact number.
- Emailed to you. Keep the report. Nobody calls unless you ask us to.