I have heard that cob only has an R value (insualation) of .25 per inch of cob. Is this true-The heat would be sucked right out -"Stone cold" -Shon _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866]