| Answer | Crossword Clue |
|---|---|
| BTU | English heat measure: Abbr. |
| BTU | Heat measure: Abbr. |
| BTU | Heat measure (abbr.) |
| BTU | Measure of heat: Abbr. |
| BTU | Unit of heat measure: Abbr. |
| CALORIE | Heat measure |
| BTU | Heat measure |
| ERGON | Work-heat measure |
| BTU | Measure of heat energy |
| UVALUE | Heat flow measure in insulation |
