Warmer class for a small price

I have long searched for a warmer, I can use (Bodum glass jug, porcelain and earthenware pot ceramic jug) for all my teapots. In addition, the warmer should be constructed so that the tea does not again in the teapot boils (ie distance between flame and pot should be large enough). Oodles of money I did not want to spend on it. All in all, I knew that it would not be easy to find such a warmer. But ... I was lucky, because just as a I have with this place. And then also at an unbeatable price. I'm excited.