Size of travel/mugs in halogen oven?

[Dan-yorks]

Helloo.

So initially we were looking at getting a couple of mug presses. Then stumbled upon various topics here about Halogen ovens with the much better results / lower costs / lower bill cost. Seems a no brainer?

That said - the dimensions I've been looking at don't give the internal dimensions. Has anyone tried travel mugs in these? What's the largest size in height have people used?