Mitsubishi – Mr. Slim FX Series Wall Mount Cold Climate Hyper Heat Plus | R-454B | Toronto & GTA Installation Included
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The Mitsubishi Mr. Slim FX Series is the most advanced wall mount heat pump in the Mr. Slim lineup — built for Canadian homeowners who refuse to compromise on cold climate performance or energy efficiency. Powered by Mitsubishi's H2i SUMO™ Hyper-Heating Inverter technology, the FX Series delivers reliable heating with outdoor unit operation down to -36.7°C (-34°F) — the deepest cold climate rating available in residential ductless. It also includes the 3D i-see Sensor®, Dual Barrier Fusion anti-contaminant coating, triple-action filtration, and built-in Wi-Fi — all standard. Available in six sizes from 6,000 to 20,800 BTU. Price includes standard professional installation and up to 20 ft of lineset.
If -36.7°C performance and top-tier efficiency matter — the FX is the right choice. For larger rooms up to 36K BTU or a lower price point, the GX delivers. Contact Bison Air for guidance.
- ✓Mitsubishi MSZ-FX Series wall mount indoor air handler — as selected
- ✓Mitsubishi MUZ-FX Series H2i SUMO™ Hyper-Heating inverter outdoor unit — matched to BTU size
- ✓Wireless remote controller (included)
- ✓Built-in Wi-Fi — Mitsubishi Comfort App ready, no adapter needed
- ✓Professional installation by TSSA Certified technicians
- ✓Up to 20 ft of lineset included — longer runs quoted separately
- ✓System startup, vacuum, leak test, and commissioning
- ✓Mitsubishi product registration (required for 10-year warranty)
- ✓H2i SUMO™ Hyper-Heating Inverter Technology — Mitsubishi's most powerful cold climate compressor. Maintains strong heating output with outdoor unit operation down to -36.7°C (-34°F)
- ✓Up to 35 SEER2 / 12.1 HSPF2 — Among the highest efficiency ratings available in the residential ductless category
- ✓3D i-see Sensor® (Built-in) — Advanced infrared sensor scans the entire room in three dimensions, detects occupants, and automatically adjusts temperature and airflow for personalized comfort — reduces output when room is unoccupied
- ✓Dual Barrier Fusion — Anti-contaminant treatment fused directly into the material of the vanes AND heat exchanger — keeps the indoor unit cleaner longer with significantly less maintenance required
- ✓Built-In Wi-Fi — Comfort App Ready — Factory-installed Wi-Fi, pairs directly with the Mitsubishi Comfort App. No external adapter required
- ✓Triple-Action Filtration — Nano Platinum filter, deodorizing filter, and electrostatic anti-allergy enzyme filter capture particles, eliminate odours, and neutralize allergens
- ✓R-454B Refrigerant — Low global warming potential, next-generation refrigerant
- ✓Hot-Start Technology — Fan delays until heat exchanger is warm, eliminating cold air blasts at startup or after defrost
- ✓Blue Fin Coating on Outdoor Unit — Anti-corrosion treatment on heat exchanger fins for durability in urban and coastal environments
- ✓Whisper-Quiet Operation — As low as 19 dB(A) indoors
All six FX Series BTU sizes share the same indoor cabinet — no size variation to plan around. Always confirm clearance requirements with your installer.
Sizing is a guideline. Contact Bison Air for a proper load calculation.
- ✓10-Year Parts & Compressor Warranty — Mitsubishi manufacturer warranty on registered equipment
- ✓1-Year Bison Air Labour Warranty — Covers installation workmanship
- ✓Optional 10-Year Labour Extension — Available for $700 — ask at time of installation
Product registration with Mitsubishi is required to activate the 10-year warranty. Bison Air handles registration at the time of installation.
- ✓TSSA Certified HVAC Contractor
- ✓Fully Licensed & Insured HVAC Technicians
- ✓Registered HRSP Heat Pump Rebate Contractor
- ✓Standard Installation Included — No Hidden Fees
- ✓Up to 20 ft Lineset Included
- ✓Professional System Design & Equipment Selection
- ✓Clean, Organized Installations
- ✓Financing Available — Pre-qualify in seconds
This system may qualify for Ontario government heat pump rebate programs. Bison Air is a Registered HRSP Rebate Contractor — we handle the paperwork.
- ✓Up to $7,500 in available rebates
- ✓Financing available — pre-qualify in seconds, no upfront payment
👉 Heat Pump Rebates — Toronto & GTA
👉 Step-by-Step Ontario Rebate Guide
👉 HVAC Financing Options
You have a Budget. We have a payment plan to match it.
Apply for financing up to $100,000. Find out if you pre-qualify in seconds. No obligation, no commitment: make your purchase more affordable with an easy monthly payment plan through Financeit. Choose 0% APR for 3 months or 9.99% over 60 months.
