Side by side
Put up to three certified outdoor units next to each other, rating by rating. Type a model number (wildcards optional) or a brand. Each figure is the unit's best certified match; the small line under it gives the lowest match and its place in its own size class.
- 1Mitsubishi Electric MUZ-FS12NA
- 2Fujitsu AOUG12LZAS1
- 3MRCOOL DIY-12-HP-C-115D25-O
| Rating | 1Mitsubishi Electric MUZ-FS12NA | 2Fujitsu AOUG12LZAS1 | 3MRCOOL DIY-12-HP-C-115D25-O |
|---|---|---|---|
| What it is | |||
| EPA category | Mini or Multi Split | Mini or Multi Split | Mini or Multi Split |
| Size class | 12,000 Btu/h | 12,000 Btu/h | 12,000 Btu/h |
| Compressor | variable-speed | variable-speed | variable-speed |
| Refrigerant | R-410A (GWP:2088) | R-410A (GWP:2088) | R-454B (GWP:470 | Lower GWP) |
| At 5°F | |||
| Kept at 5°F | 120%joint 7th of 256 in class | 138%joint 1st of 256 in class (highest of these) | 70%joint 189th of 256 in class |
| Output at 5°F | 14,700 Btu/hjoint 16th of 256 in class | 16,600 Btu/hjoint 1st of 256 in class (highest of these) | 8,400 Btu/hjoint 191st of 256 in class |
| COP at 5°F | 2.30joint 48th of 256 in class | 2.32joint 44th of 256 in class (highest of these) | 2.08joint 118th of 256 in class |
| EPA cold-climate designation | Yes, 3 of 3 matches | Yes, 2 of 2 matches | Yes, its one match |
| Seasonal ratings | |||
| HSPF2 | 11.1joint 45th of 256 in class | 12.95th of 256 in class (highest of these) | 10.2joint 128th of 256 in class |
| SEER2 | 26.3joint 22nd of 256 in class | 29.4joint 9th of 256 in class (highest of these) | 23.5joint 108th of 256 in class |
| EER2 | 13.8joint 63rd of 256 in class | 15.2joint 15th of 256 in class (highest of these) | 12.5joint 161st of 256 in class |
| Listing | |||
| Heating at 47°F / 17°F | 12,300 / 8,400 Btu/h | 12,000 / 10,000 Btu/h | 12,000 / 8,500 Btu/h |
| Certified matches | 3 | 2 | 1 |
| Listed under | 5 names | 1 name | 9 names |
A red underline marks the highest value of the units shown, as a fact, not a verdict. Ratings are each product's best certified match, as listed. Installed performance depends on the indoor unit and the installation. Source: EPA ENERGY STAR certified heat pump data, certified as of 2026-10-27. The finder filters ratings only; it does not size equipment.
How to use it
Start typing in any of the three boxes; the list matches model numbers with or without their wildcard characters (*, -[X]) and brand names. Pick a unit with the arrow keys and Enter. The page address keeps the selection, so it can be shared.
What the numbers mean
Place in class counts how many rated products of the same size class list a higher value; products with the same value share a joint place. Kept at 5°F is listed 5°F capacity divided by listed 47°F capacity in the same match. How the ratings are read