# Mitsubishi Electric GX vs TOSOT Aoraki

> Different factories: Mitsubishi Electric certifies its own units with ENERGY STAR; ENERGY STAR lists Gree as the certifier of TOSOT's units. Mitsubishi Electric GX has 12 products on sale across 1 category, priced $1,986.34 to $4,698.75. TOSOT Aoraki has 12 products on sale across 1 category, priced $1,299.99 to $2,799.99. Largest system: 36,000 BTU/h (Mitsubishi Electric GX 36,000 BTU wall mount system) against 24,000 BTU/h (TOSOT Aoraki 24,000 BTU floor/ceiling system). Highest SEER2 (cooling efficiency): 28.4 (Mitsubishi Electric GX Hyper-Heating 9,000 BTU wall mount system) against 24.5 (TOSOT Aoraki 12,000 BTU 115V wall mount system). Highest HSPF2 (heating efficiency): 11 (Mitsubishi Electric GX 15,000 BTU wall mount system) against 9.5 (TOSOT Aoraki 18,000 BTU floor/ceiling system). Most heat at 5 °F: 21,200 BTU/h (Mitsubishi Electric GX Hyper-Heating 24,000 BTU wall mount system) against 20,000 BTU/h (TOSOT Aoraki 24,000 BTU floor/ceiling system). Longest compressor warranty: 10 years (Mitsubishi Electric GX Hyper-Heating 12,000 BTU wall mount system) against 8 years (TOSOT Aoraki 24,000 BTU ceiling cassette system).

| | [Mitsubishi Electric GX](https://minisplitfacts.com/lines/mitsubishi-gx/) | [TOSOT Aoraki](https://minisplitfacts.com/lines/tosot-aoraki/) |
|---|---|---|
| Launched | 2025 | 2024 |
| Products on sale | 12 | 12 |
| Categories | Single-zone systems (12) | Single-zone systems (12) |
| Price range | $1,986.34 – $4,698.75 | $1,299.99 – $2,799.99 |
| Largest system | 36,000 BTU/h (36,000 BTU wall mount system) | 24,000 BTU/h (24,000 BTU floor/ceiling system) |
| Highest SEER2 (cooling efficiency) | 28.4 (Hyper-Heating 9,000 BTU wall mount system) | 24.5 (12,000 BTU 115V wall mount system) |
| Highest HSPF2 (heating efficiency) | 11 (15,000 BTU wall mount system) | 9.5 (18,000 BTU floor/ceiling system) |
| Most heat at 5 °F | 21,200 BTU/h (Hyper-Heating 24,000 BTU wall mount system) | 20,000 BTU/h (24,000 BTU floor/ceiling system) |
| Keeps heating in the coldest weather | none published | none published |
| Longest compressor warranty | 10 years (Hyper-Heating 12,000 BTU wall mount system) | 8 years (24,000 BTU ceiling cassette system) |
| Warranty if you install it yourself | Licensed installer required on 12 products | Licensed installer required on 12 products |
| Where sold | Got Ductless, HVACDirect | TOSOT |

## Questions

**Are Mitsubishi Electric GX and TOSOT Aoraki made by the same company?**
Different factories: Mitsubishi Electric certifies its own units with ENERGY STAR; ENERGY STAR lists Gree as the certifier of TOSOT's units. [How we work it out](https://minisplitfacts.com/who-makes/).

**Which is cheaper, Mitsubishi Electric GX or TOSOT Aoraki?**
On the prices we have (as of October 14, 2026), 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, and the cheapest TOSOT Aoraki system is the [12,000 BTU 115V wall mount system](https://minisplitfacts.com/products/tosot-aoraki-12k-115v-wall/) at $1,299.99. Prices are re-checked weekly.

**Which has more products, Mitsubishi Electric GX or TOSOT Aoraki?**
Mitsubishi Electric GX: 12 products on sale across 1 categories. TOSOT Aoraki: 12 across 1.

**Which is more efficient at cooling, Mitsubishi Electric GX or TOSOT Aoraki?**
By the brands' own figures: 28.4 for Mitsubishi Electric GX ([Hyper-Heating 9,000 BTU wall mount system](https://minisplitfacts.com/products/mitsubishi-gx-9k-hyper-heat-wall/)) and 24.5 for TOSOT Aoraki ([12,000 BTU 115V wall mount system](https://minisplitfacts.com/products/tosot-aoraki-12k-115v-wall/)). Seasonal cooling efficiency under the 2023 test procedure. Higher uses less electricity.

**Which is more efficient at heating, Mitsubishi Electric GX or TOSOT Aoraki?**
By the brands' own figures: 11 for Mitsubishi Electric GX ([15,000 BTU wall mount system](https://minisplitfacts.com/products/mitsubishi-gx-15k-wall/)) and 9.5 for TOSOT Aoraki ([18,000 BTU floor/ceiling system](https://minisplitfacts.com/products/tosot-aoraki-18k-floor-ceiling/)). Seasonal heating efficiency under the 2023 test procedure. Higher uses less electricity.

**Which puts out more heat at 5 °F, Mitsubishi Electric GX or TOSOT Aoraki?**
By the brands' own figures: 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/)) and 20,000 BTU/h for TOSOT Aoraki ([24,000 BTU floor/ceiling system](https://minisplitfacts.com/products/tosot-aoraki-24k-floor-ceiling/)). 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 GX or TOSOT Aoraki?**
By the brands' own figures: 10 years for Mitsubishi Electric GX ([Hyper-Heating 12,000 BTU wall mount system](https://minisplitfacts.com/products/mitsubishi-gx-12k-hyper-heat-wall/)) and 8 years for TOSOT Aoraki ([24,000 BTU ceiling cassette system](https://minisplitfacts.com/products/tosot-aoraki-24k-cassette/)). 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 GX or TOSOT Aoraki?**
Mitsubishi Electric GX publishes Licensed installer required on 12 of its 12 products; TOSOT Aoraki 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: [Mitsubishi Electric GX](https://minisplitfacts.com/lines/mitsubishi-gx/index.md), [TOSOT Aoraki](https://minisplitfacts.com/lines/tosot-aoraki/index.md). Page: https://minisplitfacts.com/vs/mitsubishi-vs-tosot/

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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.