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Downsize Furnace?
Imagine all the added elbow room if the adjoining water heater was GONE during
a furnace retrofit. Well, that's what I'm going to be doing (See Downsize Water Heater ) in a little less than two weeks. My contractor wants to DOWNSIZE to 75k from the 100k size of my 14-year-old, conventional (spec) gas furnace. Of course, this will be done with a "90" (or better) model. He claims that the improved efficiency of the new furnace will compensate for the difference. Do you agree? He also mentioned, after taking measurements TWICE, that I need an 18-inch-frame unit and that a bigger unit would require a reducing "boot", which he represents as a compromise. What's with that? Then there's the PVC vent(s) outside. He claims that it is legit to use only ONE - an exhaust line - that the furnace uses INTERIOR air for combustion. He represents this as a DESIRABLE way to EXCHANGE interior air with fresh. I am old enough that this furnace may well be part a big part of the resale value of our home. He wants to install a "Weathermaker" furnace and a Rheem ac condensing unit outside. He says that the Weathermaker FURNACE is virtually the same unit as a Rheem so this would be an up-front cost-saving issue ONLY, assuming he's right. What about resale then? He further says that the condensing units are different and therefore, recommends a Rheem unit outside. -- JR |
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