[Piwoslaw]

I've seen discussions about how pressure and/or induction cooking is more efficient than normal, but each time I'm doing something in the kitchen I can't help noticing how much heat the pots are losing through the sides and top. If they could be insulated, then the pot would use much less energy to do the same job. Reducing the amount of energy going into (and out of) a pot would also reduce air conditioning need for that part of the house, or at least keep the kitchen temperature down, making the fridge happy.

Actually insulating in a DIY manner would not be as easy as slapping some foam on the pot, you'd need a fire blanket. But what about making a pot with double walls (thermos-style), an insulated lid, but still allowing heat to come in through the bottom?

Price would be much more than you'd save in energy bills, but still a nice thing to dream about while waiting for the soup to finish cooking...