THERM
Set to 3 different clues across 4 published puzzles, most often “Heat unit” — The New York Times, Monday, 9 May 2011.
5 letters
Every clue on record, most used first
- Heat unit2 times
The New York Times — Monday, 9 May 2011
- Gas bill unitonce
The New York Times — Tuesday, 30 March 2010
- 1,000 large caloriesonce
The New York Times — Friday, 11 December 1998