Electric water heater noise
Just to be more specific, let me describe the noise I'm hearing from my water heater.
At various points, whether we've used hot water (or any water) recently or not, the heater will make a clicking/clunking sound, and then start putting off a hissing sound for several minutes. Sometimes it's louder and sometimes it's shorter. After several minutes, then there's another clicking/clunking sound, and the hissing stops.
Does anyone know if this is normal, or if it's something I should investigate? Like I said before, my old water heater was completely silent.