| Heat Strip Size | Amps Required | Breaker Size | Wire Gauge (Copper) |
|---|---|---|---|
| 5 kW | ~21 A | 30A | 10 AWG |
| 8 kW | ~33 A | 45A | 8 AWG |
| 10 kW | ~42 A | 50A | 8 AWG |
| 15 kW | ~63 A | 60A | 6 AWG |
| 20 kW | ~84 A | 80A | 4 AWG |
| AC Tonnage | Cooling BTUs | Recommended Furnace BTUs |
|---|---|---|
| 1.5 Ton | 18,000 | 40,000–50,000 |
| 2 Ton | 24,000 | 50,000–60,000 |
| 2.5 Ton | 30,000 | 60,000 |
| 3 Ton | 36,000 | 70,000 |
| 3.5 Ton | 42,000 | 80,000 |
| 4 Ton | 48,000 | 80,000–100,000 |
| 5 Ton | 60,000 | 100,000–120,000 |