Malvin, I would love to see your results I was thinking of building some with fins on the back to increase the surface area to radiate more heat into the room. I would love to see your readings. btw what part of the World do you live in? I am also very interested in wind generation of electricity and solar power. Also DIY projects. Take a look at this site. I have already bought the magnets for this project. and let me warn you these magnets are strong. They "WILL" take a finger nail off and cause blood blisters if you are not careful with them, I know from personal experience. After I had caused a very nice blood blister letting 2 snap together on my finger my wife in near hysterical laughter reads the warning label on the box "Keep out of reach of children, can cause harm" ???
John