| Clue | Source | Date |
|---|---|---|
| They boil water for a drink | ||
| Some whistleblowers? | ||
| Range-top water heaters for pekoe | Newsday | 06 Mar 2023 |
| Stovetop whistlers | Newsday | 26 Jul 2021 |
| Whistlers in the kitchen | New York Times | 08 May 2017 |
| Whistlers in the kitchen | ||
| Small water heaters | ||
| Mothers' whistlers? | ||
| Pots for boiling water |