249 W/m²·K = 43.8515 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 234 W/m²·K | 41.2098 |
| 239 W/m²·K | 42.0904 |
| 244 W/m²·K | 42.9709 |
| 249 | 43.8515 |
| 254 W/m²·K | 44.732 |
| 259 W/m²·K | 45.6126 |
| 264 W/m²·K | 46.4931 |
249 W/m²·K = 43.8515 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)