[SNIP] It's infrequent enough that I suspect it amounts to a very small=20 fraction of overall oil usage Why is it that using oil for heat is prevalent in the east? Can it be more economical than natural gas? ??? --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .