Quote:
Originally Posted by Wayne 962
I don't have the number and sizing of the registers, sorry...
-Wayne
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No worries. The tech you have going to look at the system will, or should, figure that out. Before the tech starts throwing parts at it, I'd make sure to ask them to assess the duct system. It shouldn't take long for them to look the system over and determine whether or not it is sized properly using the correct static pressure for sizing. There are a lot of techs who don't understand how this system works. I'm honestly not sure what the furnace is capable of overcoming as far as static pressure is concerned. When I did a retrofit with this type of system I'd assess the ductwork, determine if it was adequate and then either install the furnace or tell the homeowner that new ductwork would be necessary in order for me to install this furnace.