Heat pump model numbers starting ET
4 certified units whose model number starts ET, out of every unit in the A to Z. Updated Oct 17, 2026.
The units
One row per certified model number. All 4 in this group are listed; nothing is held back for a second page.
| Model number | Type | Size class | Brands | Certified pairings |
|---|---|---|---|---|
| ETD-H24DMR3 | central | 24,000 Btu (2-ton) | 1 | 1 |
| ETD-H36DMR3 | central | 24,000 Btu (2-ton) | 1 | 2 |
| ETD-H48DMR3 | central | 48,000 Btu (4-ton) | 1 | 1 |
| ETD-H60DMR3 | central | 48,000 Btu (4-ton) | 1 | 2 |
Other groups
Every model number group, A to Z
Find a model by its number, its indoor unit, or its AHRI number