Across
- 2. ________ hot water tanks are made of aluminum
- 4. which flame sensor only has one electrode and a ground?
- 6. a thermostat on DSI water heater senses temperature by contact with ____ _______
- 9. debris can often cause _______ in a hot water heater
- 10. the spark and ground electrodes should be ___ apart
Down
- 1. a temperature activated switch that is set to open at 180*F
- 3. what does DSI stand for?
- 5. ______ flame sensors have two electrodes and a ground
- 7. _________ is caused by improper airflow to the burner tube
- 8. three sources of heat for a water heater are propane,electrical, and ________