Forced air vs boiler replacement considerations

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Old 10-02-13, 08:05 PM
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Forced air vs boiler replacement considerations

Do people with forced air systems have the same issues to consider when replacing a furnace as those with boilers? By this I mean the need for a heat loss calculation, outdoor reset, size of ductwork, computerized controls, different heat exchanger materials, condensate disposal, zones. As always, I am curious. Thanks.
 
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Old 10-02-13, 08:47 PM
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Hi Gundi, I'm going to move your post over to the 'Furnace' forum from the 'Boiler' forum...

I imagine that all the principles are more or less the same, one would have to know how many BTUs are needed... and that is then related to the size of the ductwork to each room... I don't really know enough about hot air systems to give accurate comments though, but the guys on the 'hot air' forum should...
 
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Old 10-03-13, 08:45 PM
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For all practical purposes, yes. In fact, scorched air systems are more critical. Undersizing ductwork for the furnace will lead to heat exchanger failure.
 
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