Sorry if this has been posted before. This is a small thermal generator that can generate power from most any heat source. Look at the video, it is quite interesting.
There is an automotive transmission cooler that provides
water circulation to cool the unit. If the
pump were strong enough I would think that you could install the radiator in another room to use as an added heat source.
Check it out.
http://www.youtube.com/watch?v=hRagQ2AZgNc&feature=related 
