Neal Lewis Posted March 23, 2010 Report Share Posted March 23, 2010 My 2 year old AO Smith water heater was submerged in about 8 inches of water last weekend. It was red tagged by the utility company, since the flame arrester was under water. AO Smith says to replace the entire unit if the flame arrester is in water. Is this a requirement of all water heater manufacturers? Quote Link to comment Share on other sites More sharing options...
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