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ArgMeMatey

join:2001-08-09
Milwaukee, WI
kudos:2
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reply to misiek

Re: External air supply for an 80% AFUE furnace?

Have you considered an HRV or ERV? They're not cheap, but they may increase your efficiency a bit without the downside of trying to simply pipe in unconditioned air from outside.

»en.wikipedia.org/wiki/Energy_rec ··· tilation