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Posted by HeatPro on July 31, 2008 at 13:17:06:
In Reply to: Re: Warden King boiler posted by don on July 31, 2008 at 11:59:35:
Removing sludge will also expose raw cast iron to corrosion with potential for creating holes. It's your call whether to use an acid boil-out compound to clean off the layers of already oxidized metal that protect the cast iron. Manufacturers don't recommend it. But, if you don't care as you might get another boiler, it is something.
I'm inclined to think that you don;t have as much baseboard to give out all the heat of the boiler, so the temp goes up fast until it kettles at the low flow. You'll need to give which pump you have, HOW LONG the active baseboard is, the length of the piping run from boiler back to the boiler, and the pipe size (probably 3/4).
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