MRCOOL Advantage 5th Gen 12k (pro install): Specs, Price & Heating Rating
The MRCOOL Advantage 5th Gen 12k (pro install) is a 12,000 BTU, 1-zone mini split system from MRCOOL (model A-12-HP-115D-O). Manufacturer-stated coverage: up to 550 sq ft. Verified SEER2: 21.2. Manufacturer heating rating: down to 5F. It is a flare-install system in our classification (pro install, or an equipped DIY install with vacuum and gauges). Verified price: $937 at HVACDirect (checked 2026-11-04).
Computed from our dataset
- 1 system(s) from our verified dataset appear on this page.
- Price range: $937 to $937 (verified 2026-11-04).
- Cheapest: MRCOOL Advantage 5th Gen 12k (pro install) at $937 (HVACDirect).
- Highest SEER2: MRCOOL Advantage 5th Gen 12k (pro install) at 21.2 SEER2.
- Best heating rating: MRCOOL Advantage 5th Gen 12k (pro install), rated to 5°F.
- Against its class (12,000 BTU, 1 zone): class prices run $659 to $3,792, median $937 - this system sits at the median.
- Dataset note: NOT a DIY system: the page specifies licensed-professional installation. Heating minimum 5F per the spec table.
| System | Zones | BTU | Coverage | SEER2 | Heats to | Install | Price | |
|---|---|---|---|---|---|---|---|---|
| MRCOOL Advantage 5th Gen 12k (pro install) A-12-HP-115D-O | 1 | 12,000 | up to 550 sq ft | 21.2 | 5°F | Pro / flare | $937 at HVACDirect | Check price at HVACDirect |
Buying notes
- Specs on this page are exactly the verified fields in our dataset; blanks in the table mean the source did not publish a verifiable figure, and the dataset notes say why where we know.