My reply would be "No way!"
If only our homes could talk like that, then more homeowners would take corrective action a lot sooner. Crawl spaces are one of the prime suspects when it comes to energy loss and higher heating bills.
Looking at the construction details of this area can reveal some quick wins for the homeowner for improvements to comfort and reduced energy costs. If the crawl space is insulated, then the heating ducts are not. If the crawl space is uninsulated, then the heating ducts must be insulated. For a case study on this issue go here