Board Thread:Bug Report/@comment-80.235.105.233-20130625071611

Selling Hearths (normal) and the Upgraded Hearths (+20 up to 800) gives you more money than buying them. So you can get like 10 Upgraded Hearths and sell them for like 3 platinum, buy em back for like 50g and sell them again.

It's an optional bug, good for reforging, bad for everything :P 