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Posted by jim on April 07, 2007 at 17:51:19:
In Reply to: Re: Cleaver Brooks rear door hole posted by Dave on February 02, 2007 at 21:15:15:
: : I have 3 Cleaver Brooks 700hp boilers.
: : Model # CB100-700-150
: : I've noticed some combustion gas leaking out of the bottom of the rear door on one of them. We found a small bored hole at the very bottom of the door approx 1/4 in diameter. The other two have this as well but are not leaking any gas. I've never noticed these before and am wondering what they are for. Maybe cheater holes?
: : Thanks
: The holes are there to help drain trapped moisture during refractory curing.
dave is right