I think that was just Russ George speculating. But he makes a good point. This would be an ideal application for heat at this temperature and volume.
Process heat at similar temperatures is widely used in various industries such as making carpets or curing wood. Process heat and district heating are often derived from co-generation (combined heat and power -- CHP). See: http://www.arb.ca.gov/energy/dg/guidance/gappd.pdf They have been doing this in New York City since Edison invented electric lighting. - Jed
