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Old May 24th, 2014, 10:55 PM
Location: Butler County PA
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Default Fin tube used in sap preheaters

Has anyone used or tried using fin tube in your steam hood? I think it would give us the best and quickest heat transfer in a short loop of copper pipe. Thoughts???

Last edited by machinist67; May 25th, 2014 at 04:14 PM.
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Old May 25th, 2014, 09:26 AM
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Its not necessary for preheating sap. Fin tubing is designed for water to air heat exchanging. Solid tubing such as copper works great for water to water heat exchanging. Fin tubing would also be a nightmare to clean. IMO
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Old May 25th, 2014, 07:28 PM

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I agree with Xak I used it on my first rig and it didn't impress me. The Aluminum fins don't contact the copper as tight as you think and there is a small gap. Water sits in there and turns black. I believe that the steam/hot vapor will heat the fins but doesn't transfer it as fast because of the secondary contact.
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