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Posted by Doug B on March 28, 2008 at 15:16:06:
In Reply to: Re: Boiler Upgrade posted by HeatPro on March 28, 2008 at 14:05:43:
SORRY, HIT THE WRONG BUTTON ON PREVIOUS POST.
If i'm reading the diagram right, the IFWH is installed with a zone valve, using the main circulator pump for suction, as would be for a typical second zone.
I'm assuming what happens during the off- peak heating season, ie: summer when the boiler doesn't normally fire, the aquastat on the IFWH continues to fire the boiler to keep the storage tank at temperature. with such a small amount of water circulating in this arrangement, wouldn't this short cycle the boiler?
A condensing boiler would require me to sleeve the existing flue, which i also didn't want to do because its an added expense.
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