I've seen it, & heard it many times, & had lots of different ideas, on what causes it, but want to know what you all think causes a water heater to, what I call "rumble" when the burner is on. The job I was on friday, when I noticed it, the heater would rumble more when the hot water was turned on, with burner on. Sounds like it is boiling inside tank, & would snap & crackle, & actually vibrate.Water temp. was normal. I also notice that it usually always a State water heater. This was a standard 40 gal State NG tank heater, about 10yrs old. Customer said it has done it for a long time, but wouldn't swear to it, that it was from day 1.
No announcement yet.
Water heater rumbling