Burnin' Ring of Fire
Across
- 2. reduces build up in boiler water
- 4. indicates water level on a steam boiler
- 7. byproduct of incomplete combustion
- 8. double block and ________
- 10. steam above saturation
- 11. wiring of safeties
- 13. cycles boiler based on setpoint
Down
- 1. boiler rating
- 3. normal operating water level
- 5. adds water to boiler system
- 6. returned to steam boiler
- 9. perfect combustion
- 12. safety device to prevent explosion