BTW, your suspicion re: oil in ducts was confirmed by Scandinavian study
a few years ago (Indoor Air Proceedings? Indoor Air?) -- they found that
mold could grow on this surface. They recommnending cleaning the duct
interior of oil (rom the mfg. process) before installing the ductwork.
-- Thomas J. Phillips AIR {) FOOD Air Pollution Research Specialist /|\ CARB/RD, Box 2815, Sacramento, CA 95812 WATER | SKIN 916.322.7145/4357 FAX, http://www.arb.ca.gov _/ \_ __________________________________________________________________ This greenbuilding dialogue is sponsored by Oikos (www.oikos.com) and Environmental Building News (www.ebuild.com). For instructions send e-mail to greenbuilding-request@crest.org. __________________________________________________________________