I haven't been able to watch either video (at work). But, hot air panels are a great and super cheap way to get heat into the house. I'm not a huge fan of the downspout heaters though. Seems like they wouldn't be the most efficient. However, they do seem to work well for the user in that link.
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Last edited by Daox; 01-05-11 at 01:06 PM..
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