Mitsubishi Electric EX vs Mitsubishi Electric FX
Both point to the same factory, Mitsubishi Electric: Mitsubishi Electric certifies its own units with ENERGY STAR, and Mitsubishi Electric certifies its own units with ENERGY STAR. Mitsubishi Electric EX has 8 products on sale across 1 category, priced $818.25 to $3,922.40. Mitsubishi Electric FX has 6 products on sale across 1 category, priced $2,493 to $4,794.75. Largest system: 18,000 BTU/h (Mitsubishi Electric EX Hyper-Heating 18,000 BTU wall mount system) against 24,000 BTU/h (Mitsubishi Electric FX Hyper-Heating 24,000 BTU wall mount system). Highest SEER2 (cooling efficiency): 21.7 (Mitsubishi Electric EX 12,000 BTU wall mount system) against 35 (Mitsubishi Electric FX Hyper-Heating 6,000 BTU wall mount system). Highest HSPF2 (heating efficiency): 12.9 (Mitsubishi Electric EX 9,000 BTU wall mount system) against 13.3 (Mitsubishi Electric FX Hyper-Heating 9,000 BTU wall mount system). Most heat at 5 °F: 20,000 BTU/h (Mitsubishi Electric EX Hyper-Heating 18,000 BTU wall mount system) against 26,600 BTU/h (Mitsubishi Electric FX Hyper-Heating 24,000 BTU wall mount system). Longest compressor warranty: 10 years (Mitsubishi Electric EX Hyper-Heating 12,000 BTU wall mount system) against 10 years (Mitsubishi Electric FX Hyper-Heating 12,000 BTU wall mount system).
At a glance
Who makes them?
Both point to the same factory, Mitsubishi Electric: Mitsubishi Electric certifies its own units with ENERGY STAR, and Mitsubishi Electric certifies its own units with ENERGY STAR.
Mitsubishi Electric EX
confirmed Mitsubishi Electric. source ↗
Mitsubishi Electric FX
Part by part
Matched by each product's size tier within its own line, so a row pairs each brand's compact, medium, large or XL piece. Tiers are for lining lineups up; the dimensions say how big each one really is.
Single-zone systems 8 vs 6
Questions
Are Mitsubishi Electric EX and Mitsubishi Electric FX made by the same company?
Both point to the same factory, Mitsubishi Electric: Mitsubishi Electric certifies its own units with ENERGY STAR, and Mitsubishi Electric certifies its own units with ENERGY STAR. How we work it out.
Which is cheaper, Mitsubishi Electric EX or Mitsubishi Electric FX?
On the prices we have (as of October 14, 2026), the cheapest Mitsubishi Electric EX system is the Hyper-Heating 9,000 BTU wall mount system at $818.25, and the cheapest Mitsubishi Electric FX system is the Hyper-Heating 6,000 BTU wall mount system at $2,493. Prices are re-checked weekly.
Which has more products, Mitsubishi Electric EX or Mitsubishi Electric FX?
Mitsubishi Electric EX: 8 products on sale across 1 categories. Mitsubishi Electric FX: 6 across 1.
Which is more efficient at cooling, Mitsubishi Electric EX or Mitsubishi Electric FX?
By the brands' own figures: 21.7 for Mitsubishi Electric EX (12,000 BTU wall mount system) and 35 for Mitsubishi Electric FX (Hyper-Heating 6,000 BTU wall mount system). Seasonal cooling efficiency under the 2023 test procedure. Higher uses less electricity.
Which is more efficient at heating, Mitsubishi Electric EX or Mitsubishi Electric FX?
By the brands' own figures: 12.9 for Mitsubishi Electric EX (9,000 BTU wall mount system) and 13.3 for Mitsubishi Electric FX (Hyper-Heating 9,000 BTU wall mount system). Seasonal heating efficiency under the 2023 test procedure. Higher uses less electricity.
Which puts out more heat at 5 °F, Mitsubishi Electric EX or Mitsubishi Electric FX?
By the brands' own figures: 20,000 BTU/h for Mitsubishi Electric EX (Hyper-Heating 18,000 BTU wall mount system) and 26,600 BTU/h for Mitsubishi Electric FX (Hyper-Heating 24,000 BTU wall mount system). Heat output with 5 °F outdoors, from the certification record. Published for units certified for cold climates.
Which has the longer compressor warranty, Mitsubishi Electric EX or Mitsubishi Electric FX?
By the brands' own figures: 10 years for Mitsubishi Electric EX (Hyper-Heating 12,000 BTU wall mount system) and 10 years for Mitsubishi Electric FX (Hyper-Heating 12,000 BTU wall mount system). Years of compressor coverage under the brand's warranty, often only when registered. Conditions are on the product page.
Which has the better warranty if you install it yourself, Mitsubishi Electric EX or Mitsubishi Electric FX?
Mitsubishi Electric EX publishes Licensed installer required on 8 of its 8 products; Mitsubishi Electric FX publishes Licensed installer required on 6 of its 6 products. What the brand's warranty says when the owner installs the unit: kept, reduced, or void without a licensed installer. The quote is on the product page.
Answered from the catalogue data, as of October 14, 2026. How we compare.