Heat pump model numbers starting GX
8 certified units whose model number starts GX, out of every unit in the A to Z. Updated Oct 17, 2026.
The units
One row per certified model number. All 8 in this group are listed; nothing is held back for a second page.
| Model number | Type | Size class | Brands | Certified pairings |
|---|---|---|---|---|
| GXH12(3.5)LSK4DH2 | mini-split | 12,000 Btu (1-ton) | 3 | 3 |
| GXH18(5.3)FMK4DH-1 | mini-split | 18,000 Btu (1.5-ton) | 3 | 3 |
| GXH24(7.0)FMK4DH-1 | mini-split | 24,000 Btu (2-ton) | 3 | 3 |
| GXH24-36MSK4DH | central | 24,000 Btu (2-ton) | 7 | 14 |
| GXH30(8.8)FMK4DH-1 | mini-split | 30,000 Btu (2.5-ton) | 3 | 3 |
| GXH36(10.6)FMK4DH-1 | mini-split | 36,000 Btu (3-ton) | 3 | 3 |
| GXH42(12.3)FMK4DH-1 | mini-split | 36,000 Btu (3-ton) | 3 | 3 |
| GXH48-60MSK4DH | central | 48,000 Btu (4-ton) | 7 | 14 |
Other groups
Every model number group, A to Z
Find a model by its number, its indoor unit, or its AHRI number