I could imagine it working rather well, actually
Y'all ever seen an old timey bed warmer? These things look like a frying pan with a lid and long handles. Back when, people put coals in them, shut the lid, and put the thing UNDER THE BEDCOVERS...
wait, here's a link
http://www.oldandinteresting.com/bed-warmers.aspx
__________________

1987 300TD Turbo Wagon "Ti Blanc Stella!"
Carpe cervisium.
"If I owned Texas and Hell, I'd rent out Texas and live in Hell." -- William Tecumseh Sherman