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Posted by Joe Lambert on April 12, 2011 at 08:51:40:
In Reply to: Keeping a boiler in hot standby with CBD posted by Steve on April 08, 2011 at 13:17:08:
I have seen this as a 'hot' layup of a boiler. The blowdown from one boiler is not only hot, but also has no O2. You just have to be careful of the water level in the standby boiler and the water quality once you do start it back up.