Mitsubishi Floor-Mounted Indoor Units
Low on the wall, like the radiator it replaces — and the right answer for sunrooms, cabins, and any room where the wall space is up high or nonexistent.
- Mitsubishi Diamond Contractor ELITE
- 12-year parts & labor warranty
- 180-Day Comfort Guarantee
- Veteran-owned since 2013
Heat where you feel it — at floor level
A floor-mounted unit sits a few inches off the floor against the wall, exactly where a baseboard or radiator would be. In heating mode it pushes warm air along the floor from two outlets — top and bottom — so the room warms from your feet up instead of from the ceiling down. That's a real difference in an Adirondack camp with a cathedral ceiling or a Vermont farmhouse with knee walls upstairs, where a high wall unit has nowhere to hang and warm air would pool at the peak.
Multi-flow vanes give it fast cooling in summer too. Compact footprint, easy filter access at standing height, and full Hyper-Heat performance when paired with an H2i® outdoor unit.

Specifications that matter
| Series | MFZ-KJ (Hyper-Heat) |
|---|---|
| Capacities | 9,000 – 18,000 BTU/h per unit |
| Airflow | Dual outlet: top and floor-level, multi-flow vanes |
| Heating | 100% capacity at 5°F, operates to -13°F (H2i®) |
| Height off floor | approximately 2.5 inches; 23.6 in tall |
| Controls | Wireless remote standard; wall thermostat and kumo cloud® 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
- Sunrooms, three-season rooms, and rooms with walls of glass
- Upstairs rooms with knee walls or sloped ceilings
- Cabins and camps with cathedral ceilings
- Direct baseboard or radiator replacement
Questions about floor-mounted units
Can it go under a window?
Yes — that's the classic placement, right where the baseboard was. It needs a few inches of clearance and a path for the line set through the wall behind it.
Is it as efficient as a wall unit?
Slightly less on paper, but in rooms with high ceilings it often delivers better comfort per dollar because the heat stays where you are instead of at the peak.
Does it get in the way of furniture?
It's about 28 inches wide and 8.5 inches deep — roughly a large radiator. Most people place it where the old radiator or baseboard was and the furniture layout doesn't change.
Can it be recessed into the wall?
It can be partially recessed with a framed opening; we'll look at the wall construction at the estimate.
Can a floor unit be one zone of a multi-zone system?
Yes. Mix a floor unit in the sunroom with wall units in the bedrooms and a cassette in the kitchen on one MXZ outdoor unit.
Is it safe with kids and pets?
The outlets are louvered and the surfaces stay warm, not hot — nothing like a radiator or electric baseboard.
Rebates: $6,000–$10,000
New York homeowners switching from oil, propane or electric baseboard to a Mitsubishi cold-climate heat pump qualify for NYS Clean Heat utility rebates through National Grid or NYSEG — the highest tier goes to whole-home conversions. Vermont homes get a set per-unit amount through Efficiency Vermont plus utility bonuses. We confirm your exact number at the free estimate and submit every application for you.
Get an exact price for your home
Takes 30 seconds. We reach out within one business day, visit your home, size the system properly, and hand you a written price with every rebate already applied. No pressure, no obligation.
- $6,000–$10,000 in NY rebates — we file the paperwork
- 18 months, 0% interest financing available
- 12-year parts & labor warranty with our Elite Care Plan
- 180-Day Comfort Guarantee on qualifying installs
Prefer to talk? Call or text (518) 719-5614
Ready for one system that heats and cools — with no ductwork?
Free estimate, rebates filed for you, installed in days. Talk to a Mitsubishi Diamond Contractor ELITE.