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URL:  http://boards.fool.com/the-fins-transfer-the-heat-more-efficiently-the-20129523.aspx

Subject:  Re: Radiant Heat System Date:  1/10/2004  11:43 AM
Author:  dcarper Number:  44470 of 128206

The fins transfer the heat more efficiently. The measure is actually BTU/hour, not just BTU. So, if the fins increase the efficiency by 1.2, and you transfer A BTU/hr without them, you would transfer heat at a rate of 1.2A BTU/hr with the fins.

I think it's really a moot point, as long as the idea is to keep the floor always warm (as opposed to wanting to heat it on a moments notice). Once the heat is in the pipes, it will eventually end up in the floor, minus a small loss through the insulation. Methods of dispersing the heat more quickly will heat up the floor faster, but will also require the heat in the pipes to be turned on sooner. The floor will give up heat at a constant rate for any particular temperature, and this will control the amount of heat that must be generated. How hot the pipes are or how fast the heat moves is irrelavent.

David
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