When comparing furnace rates, take into accout overall installed rate, which incorporates unit value, hard work, permits, ductwork mods

http://www.mediafire.com/file/4jzcqlma6ad75wd/pdf-38966-11239.pdf

When evaluating furnace costs, bear in mind overall installed rate, which includes unit price, exertions, lets in, ductwork mods, and plausible electrical enhancements.