228.5 W/m²·K = 40.2412 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 213.5 W/m²·K | 37.5995 |
| 218.5 W/m²·K | 38.4801 |
| 223.5 W/m²·K | 39.3606 |
| 228.5 | 40.2412 |
| 233.5 W/m²·K | 41.1218 |
| 238.5 W/m²·K | 42.0023 |
| 243.5 W/m²·K | 42.8829 |
228.5 W/m²·K = 40.2412 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)