Hello, wanted to get your opinions/suggestions on a doubke walled/insulated French Press. I currently have a Bodum 3 cup at home and an ikea one at work (a bigger one to share). Love both, but find that sitting for 4 minutes tends to leave it without much "hot-time" left to drink it. The "Frieling" brand comes up a lot in "best of" google searches, but I am also seeing no name ones on ebay. Size I'm looking for is around 12 oz (1 mug full) for my home one. Any leads/comments would be appreciated. Thank you.