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You can now buy a flame-throwing robot dog for under $10,000
(arstechnica.com)
This is a most excellent place for technology news and articles.
Lying on my bed, my new dog will keep me warm on cool winter nights.
According to the FAQ on the flamethrower, while the unit is apparently pretty flexible in fuel that it can handle, the recommended fuel is mostly diesel. I'd imagine that one could use biodiesel and do climate-friendly heating.
And you could roast marshmallows in bed!