Backpackers have been using this technique to save fuel - I've got a cozy for my cookpot.
I also remember seeing this on one of the Victorian Farm shows - it was something like a pot roast brought to a boil in the morning, then put in a well insulated container to sit for the day.
Edit: Whoa, I just clicked through to "The Product" section, and it's an open source design using an Arduino. Super cool!
I also remember seeing this on one of the Victorian Farm shows - it was something like a pot roast brought to a boil in the morning, then put in a well insulated container to sit for the day.
Edit: Whoa, I just clicked through to "The Product" section, and it's an open source design using an Arduino. Super cool!