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<p>[QUOTE=&quot;-jeffB, post: 1379441, member: 27832&quot;]<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie9" alt=":eek:" unselectable="on" unselectable="on" /></p><p><br /></p><p>I&#039;m alarmed at the &quot;Goldenrod&quot; thing.</p><p><br /></p><p>First, I&#039;m alarmed at the notion of putting a heat generator inside an enclosed space like a safe. I&#039;m sure they&#039;re carefully engineered, and I expect we&#039;d eventually hear about it if they started causing fires -- but there are a lot of failure modes for something like that, and I&#039;d have a hard time believing that <i>none</i> of them would be able to cause a thermal excursion.</p><p><br /></p><p>Second, <i>raising the temperature doesn&#039;t lower the water content of the air</i>. It lowers the <i>relative</i> humidity, but it doesn&#039;t lower the <i>dewpoint</i> -- a measure of how much water the air is actually carrying. It will prevent condensation, which is probably the biggest issue for firearms, and is certainly bad for coins, but I&#039;m not sure that&#039;s enough. With coins, I&#039;d think you&#039;d also want to avoid chemical effects from the water vapor -- and raising the ambient temperature will actually <i>speed</i> those processes.</p><p><br /></p><p>I&#039;d use a can of desiccant, myself. I don&#039;t take the cobalt-chloride hysteria very seriously -- sure, it&#039;s toxic, but it&#039;s present in tiny quantities, and it stays put unless you mishandle the desiccant. To put it into perspective, if you scratch through the copper coating of a Zincoln and drop it in salt water, it&#039;ll start forming zinc chloride, which is of comparable toxicity. <i>Most</i> people don&#039;t lose a lot of sleep over that risk.[/QUOTE]</p><p><br /></p>

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