# DELLA Optima CloudAir vs Mitsubishi Electric GX

> Different factories: DELLA Optima CloudAir's certified ratings match models TCL certifies under its own name; Mitsubishi Electric certifies its own units with ENERGY STAR. DELLA Optima CloudAir has 5 products on sale across 1 category, priced $899.96 to $1,804.96. Mitsubishi Electric GX has 12 products on sale across 1 category, priced $1,986.34 to $4,698.75. Largest system: 23,000 BTU/h (DELLA Optima CloudAir 23,000 BTU wall mount system) against 36,000 BTU/h (Mitsubishi Electric GX 36,000 BTU wall mount system). Highest SEER2 (cooling efficiency): 24 (DELLA Optima CloudAir 12,000 BTU wall mount system) against 28.4 (Mitsubishi Electric GX Hyper-Heating 9,000 BTU wall mount system). Highest HSPF2 (heating efficiency): 10 (DELLA Optima CloudAir 18,000 BTU wall mount system) against 11 (Mitsubishi Electric GX 15,000 BTU wall mount system). Most heat at 5 °F: 18,600 BTU/h (DELLA Optima CloudAir 23,000 BTU wall mount system) against 21,200 BTU/h (Mitsubishi Electric GX Hyper-Heating 24,000 BTU wall mount system).

| | [DELLA Optima CloudAir](https://minisplitfacts.com/lines/della-optima-cloudair/) | [Mitsubishi Electric GX](https://minisplitfacts.com/lines/mitsubishi-gx/) |
|---|---|---|
| Launched | 2025 | 2025 |
| Products on sale | 5 | 12 |
| Categories | Single-zone systems (5) | Single-zone systems (12) |
| Price range | $899.96 – $1,804.96 | $1,986.34 – $4,698.75 |
| Largest system | 23,000 BTU/h (23,000 BTU wall mount system) | 36,000 BTU/h (36,000 BTU wall mount system) |
| Highest SEER2 (cooling efficiency) | 24 (12,000 BTU wall mount system) | 28.4 (Hyper-Heating 9,000 BTU wall mount system) |
| Highest HSPF2 (heating efficiency) | 10 (18,000 BTU wall mount system) | 11 (15,000 BTU wall mount system) |
| Most heat at 5 °F | 18,600 BTU/h (23,000 BTU wall mount system) | 21,200 BTU/h (Hyper-Heating 24,000 BTU wall mount system) |
| Keeps heating in the coldest weather | -13 °F (23,000 BTU wall mount system) | none published |
| Longest compressor warranty | none published | 10 years (Hyper-Heating 12,000 BTU wall mount system) |
| Warranty if you install it yourself | Kept on 5 products | Licensed installer required on 12 products |
| Where sold | DELLA, Amazon | Got Ductless, HVACDirect |

## Questions

**Are DELLA Optima CloudAir and Mitsubishi Electric GX made by the same company?**
Different factories: DELLA Optima CloudAir's certified ratings match models TCL 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, DELLA Optima CloudAir or Mitsubishi Electric GX?**
On the prices we have (as of October 14, 2026), the cheapest DELLA Optima CloudAir system is the [9,000 BTU 115V wall mount system](https://minisplitfacts.com/products/della-optima-cloudair-9k-115v-wall/) at $899.96, 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, DELLA Optima CloudAir or Mitsubishi Electric GX?**
DELLA Optima CloudAir: 5 products on sale across 1 categories. Mitsubishi Electric GX: 12 across 1.

**Which is more efficient at cooling, DELLA Optima CloudAir or Mitsubishi Electric GX?**
By the brands' own figures: 24 for DELLA Optima CloudAir ([12,000 BTU wall mount system](https://minisplitfacts.com/products/della-optima-cloudair-12k-wall/)) 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, DELLA Optima CloudAir or Mitsubishi Electric GX?**
By the brands' own figures: 10 for DELLA Optima CloudAir ([18,000 BTU wall mount system](https://minisplitfacts.com/products/della-optima-cloudair-18k-wall/)) 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, DELLA Optima CloudAir or Mitsubishi Electric GX?**
By the brands' own figures: 18,600 BTU/h for DELLA Optima CloudAir ([23,000 BTU wall mount system](https://minisplitfacts.com/products/della-optima-cloudair-23k-wall/)) 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 better warranty if you install it yourself, DELLA Optima CloudAir or Mitsubishi Electric GX?**
DELLA Optima CloudAir publishes Kept on 5 of its 5 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: [DELLA Optima CloudAir](https://minisplitfacts.com/lines/della-optima-cloudair/index.md), [Mitsubishi Electric GX](https://minisplitfacts.com/lines/mitsubishi-gx/index.md). Page: https://minisplitfacts.com/vs/della-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.