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[email protected] trader4@optonline.net is offline
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Default High Efficiency gas furnace - return air temperature



On Jan 24, 4:00 am, wrote:
wrote:
... if the metal is a good conductor, eg steel with 50 Btu/h-ft-F, with
poor airfilm conductances on both sides, eg 5 Btu/h-F-ft^2, thinner steel
won't help much. How much, in this case, starting with 0.050" steel?


Heh, don't try to obfuscate the facts by spewing a bunch of calcs as
usual, trying to cover up...


It's 300-year-old physics :-) What's the answer to this simple problem?Still no clue? Rewrite the steel conductivity as 50 Btu-ft/h-ft^2-F...


Nick




Screw you college boy. You claimed making heat exchangers thinner in
high efficiency furnaces wasn't a significant factor in improving heat
transfer. Actually, it's inversely proportional, per the equation
backed by reference I provided you. Yet you go on spewing, like some
kind of self proclaimed energy expert, chocked full of formulas and
calculations, when you don't even understand the most basic concepts.