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Posted by HeatPro on December 09, 2007 at 12:40:57:
In Reply to: Re: 2 issues, possibly related... posted by Greg on December 09, 2007 at 12:20:43:
You shouldn't lose ANY, as it is replaced by oxygenated corrosive water.
: Presumably because the stronger pumps create a larger pressure differential? Yes
: I'm still concerned about the difference in gauge temp vs aquastat setpoint... specifically, I suppose that I'm worried that the aquastat is deteriorating, and that a hard failure could occur with dire consequences...What's a good way to meausure the temp in the boiler?
++ Good measurement could be done with an electronic thermometer placed under the insulation at several spots on the upper part of the boiler.
If you are concerned about failure, commercial units are required to have another high limit as well for the same worry, as blowing up a commercial boiler launches itself at more families at once. It is often strapped onto the outlet pipe.
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