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Foot warmers?(3 posts)

Foot warmers?lemmy999
Jan 10, 2004 9:45 PM
Has anyone tried anything like the hotronic foot/shoe warmers (http://www.hotronic.com) for cold weather riding? I would like to try them but the price is kind of ridiculous. I have thought about buying just the heating elements and making my own. I was wondering if anyone had tried making there own and had any suggestions on battery capacity. I think the hotronic systems just uses one or two NiMH cells because the charger for it is a 3.0V 330mA "wallwart" type charger. The only realy complexity is that I think this systems actually regulates the temperature (there are three wires going back to the battery back, I assume: Power, Ground, Temperature). However this regulation could accomplished with a thermistor and a small amount of circuitry.
yet another solution looking for the problemcyclopathic
Jan 11, 2004 7:27 AM
from the look the system is way overdesigned and expensive.

a pair of Performance booties (20$), warm wool socks, and chemical wamers from Walmart hunting section will be lighter, cheaper and more practical.
yet another solution looking for the problemlemmy999
Jan 11, 2004 9:10 AM
While I agree with you for the most part, the disadvantage to your solution is A) something decently large and uncomfortable in the shoe or if between the bootie and shoe, has limited effectives, and B) since there is no temperature regulation or on/off switch, your feet can get too hot and sweat and then really get cold.

While I don't like the idea of hanging a battery pack on myself (and probably wouldn't do it), I do like the idea of having something there that you can turn on only when your feet started to get a bit cold and turn off when they warmed up a little.