# MRCOOL DIY 5th Gen vs Mitsubishi Electric GX

> Different factories: MRCOOL DIY 5th Gen's certified ratings match models Midea certifies under its own name; Mitsubishi Electric certifies its own units with ENERGY STAR. MRCOOL DIY 5th Gen has 27 products on sale across 3 categories, priced $443 to $3,769. Mitsubishi Electric GX has 12 products on sale across 1 category, priced $1,986.34 to $4,698.75. Largest system: 36,000 BTU/h (MRCOOL DIY 5th Gen 36,000 BTU wall mount system) against 36,000 BTU/h (Mitsubishi Electric GX 36,000 BTU wall mount system). Highest SEER2 (cooling efficiency): 23.9 (MRCOOL DIY 5th Gen 18,000 BTU multi-zone outdoor unit) against 28.4 (Mitsubishi Electric GX Hyper-Heating 9,000 BTU wall mount system). Highest HSPF2 (heating efficiency): 12.2 (MRCOOL DIY 5th Gen Hyper Heat 18,000 BTU ceiling cassette system) against 11 (Mitsubishi Electric GX 15,000 BTU wall mount system). Most heat at 5 °F: 46,000 BTU/h (MRCOOL DIY 5th Gen 55,000 BTU multi-zone outdoor unit) against 21,200 BTU/h (Mitsubishi Electric GX Hyper-Heating 24,000 BTU wall mount system). Longest compressor warranty: 7 years (MRCOOL DIY 5th Gen 9,000 BTU 115V wall mount system) against 10 years (Mitsubishi Electric GX Hyper-Heating 12,000 BTU wall mount system).

| | [MRCOOL DIY 5th Gen](https://minisplitfacts.com/lines/mrcool-diy-5th-gen/) | [Mitsubishi Electric GX](https://minisplitfacts.com/lines/mitsubishi-gx/) |
|---|---|---|
| Launched | 2024 | 2025 |
| Products on sale | 27 | 12 |
| Categories | Single-zone systems (12), Multi-zone outdoor units (5), Indoor units (10) | Single-zone systems (12) |
| Price range | $443 – $3,769 | $1,986.34 – $4,698.75 |
| Largest system | 36,000 BTU/h (36,000 BTU wall mount system) | 36,000 BTU/h (36,000 BTU wall mount system) |
| Highest SEER2 (cooling efficiency) | 23.9 (18,000 BTU multi-zone outdoor unit) | 28.4 (Hyper-Heating 9,000 BTU wall mount system) |
| Highest HSPF2 (heating efficiency) | 12.2 (Hyper Heat 18,000 BTU ceiling cassette system) | 11 (15,000 BTU wall mount system) |
| Most heat at 5 °F | 46,000 BTU/h (55,000 BTU multi-zone outdoor unit) | 21,200 BTU/h (Hyper-Heating 24,000 BTU wall mount system) |
| Keeps heating in the coldest weather | -22 °F (Hyper Heat 12,000 BTU wall mount system) | none published |
| Longest compressor warranty | 7 years (9,000 BTU 115V wall mount system) | 10 years (Hyper-Heating 12,000 BTU wall mount system) |
| Warranty if you install it yourself | Kept on 27 products | Licensed installer required on 12 products |
| Where sold | Got Ductless, HVACDirect, Amazon | Got Ductless, HVACDirect |

## Questions

**Are MRCOOL DIY 5th Gen and Mitsubishi Electric GX made by the same company?**
Different factories: MRCOOL DIY 5th Gen's certified ratings match models Midea certifies under its own name; Mitsubishi Electric certifies its own units with ENERGY STAR. [How we work it out](https://minisplitfacts.com/who-makes/).

**Which is cheaper, MRCOOL DIY 5th Gen or Mitsubishi Electric GX?**
On the prices we have (as of October 14, 2026), the cheapest MRCOOL DIY 5th Gen system is the [24,000 BTU air handler system](https://minisplitfacts.com/products/mrcool-diy-5th-gen-24k-air-handler/) at $970, and the cheapest Mitsubishi Electric GX system is the [36,000 BTU wall mount system](https://minisplitfacts.com/products/mitsubishi-gx-36k-wall/) at $1,986.34. Prices are re-checked weekly.

**Which has more products, MRCOOL DIY 5th Gen or Mitsubishi Electric GX?**
MRCOOL DIY 5th Gen: 27 products on sale across 3 categories. Mitsubishi Electric GX: 12 across 1.

**Which is more efficient at cooling, MRCOOL DIY 5th Gen or Mitsubishi Electric GX?**
By the brands' own figures: 23.9 for MRCOOL DIY 5th Gen ([18,000 BTU multi-zone outdoor unit](https://minisplitfacts.com/products/mrcool-diy-5th-gen-18k-multi-zone-outdoor/)) and 28.4 for Mitsubishi Electric GX ([Hyper-Heating 9,000 BTU wall mount system](https://minisplitfacts.com/products/mitsubishi-gx-9k-hyper-heat-wall/)). Seasonal cooling efficiency under the 2023 test procedure. Higher uses less electricity.

**Which is more efficient at heating, MRCOOL DIY 5th Gen or Mitsubishi Electric GX?**
By the brands' own figures: 12.2 for MRCOOL DIY 5th Gen ([Hyper Heat 18,000 BTU ceiling cassette system](https://minisplitfacts.com/products/mrcool-diy-5th-gen-18k-hyper-heat-cassette/)) and 11 for Mitsubishi Electric GX ([15,000 BTU wall mount system](https://minisplitfacts.com/products/mitsubishi-gx-15k-wall/)). Seasonal heating efficiency under the 2023 test procedure. Higher uses less electricity.

**Which puts out more heat at 5 °F, MRCOOL DIY 5th Gen or Mitsubishi Electric GX?**
By the brands' own figures: 46,000 BTU/h for MRCOOL DIY 5th Gen ([55,000 BTU multi-zone outdoor unit](https://minisplitfacts.com/products/mrcool-diy-5th-gen-55k-multi-zone-outdoor/)) and 21,200 BTU/h for Mitsubishi Electric GX ([Hyper-Heating 24,000 BTU wall mount system](https://minisplitfacts.com/products/mitsubishi-gx-24k-hyper-heat-wall/)). Heat output with 5 °F outdoors, from the certification record. Published for units certified for cold climates.

**Which has the longer compressor warranty, MRCOOL DIY 5th Gen or Mitsubishi Electric GX?**
By the brands' own figures: 7 years for MRCOOL DIY 5th Gen ([9,000 BTU 115V wall mount system](https://minisplitfacts.com/products/mrcool-diy-5th-gen-9k-115v-wall/)) and 10 years for Mitsubishi Electric GX ([Hyper-Heating 12,000 BTU wall mount system](https://minisplitfacts.com/products/mitsubishi-gx-12k-hyper-heat-wall/)). 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, MRCOOL DIY 5th Gen or Mitsubishi Electric GX?**
MRCOOL DIY 5th Gen publishes Kept on 27 of its 27 products; Mitsubishi Electric GX publishes Licensed installer required on 12 of its 12 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.

Full product lists with specs and sources: [MRCOOL DIY 5th Gen](https://minisplitfacts.com/lines/mrcool-diy-5th-gen/index.md), [Mitsubishi Electric GX](https://minisplitfacts.com/lines/mitsubishi-gx/index.md). Page: https://minisplitfacts.com/vs/mrcool-vs-mitsubishi/

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MiniSplit Facts lists modular tool storage from every brand side by side, with a source for every spec. [How we compare](https://minisplitfacts.com/how-we-compare/). Data as of 2026-10-14.