OF
Well-Known Member
It's long been observed that new boxes seem hotter and then seem to cool down as they age. These 900 pages contain dozens of such posts I think.
I've observed it myself. I have one of the original custom walnut boxes that gets little use. My 'user' (current version, latching lid maple) was 'hotter' when I first got it, but now no longer is. Here I have the benefit of a reference to base observations on.
Exactly why this is I'm not sure, but it's widely reported. Two thoughts I've had are that some of the welds degrade (close contact but not actually welded connections) raising the resistance and lowering the power or perhaps it's something to do with surface reactions on the SS mesh better insulating it from conduction so radiation can increase losses down into the wood? At one point I thought it might be increased resistance from the battery contacts, but initial measurements seem to dispel that idea.
Anyway, the effect is (fairly) well known, not understood, and can be expected to fade I think?
OF
I've observed it myself. I have one of the original custom walnut boxes that gets little use. My 'user' (current version, latching lid maple) was 'hotter' when I first got it, but now no longer is. Here I have the benefit of a reference to base observations on.
Exactly why this is I'm not sure, but it's widely reported. Two thoughts I've had are that some of the welds degrade (close contact but not actually welded connections) raising the resistance and lowering the power or perhaps it's something to do with surface reactions on the SS mesh better insulating it from conduction so radiation can increase losses down into the wood? At one point I thought it might be increased resistance from the battery contacts, but initial measurements seem to dispel that idea.
Anyway, the effect is (fairly) well known, not understood, and can be expected to fade I think?
OF