Looks kind of like a buried house /Neutral

Improve the outside a bit, then this idea goes.

may be that I'm wrong, but the fire does not jump over at some point, is only 1 block next to it and made of wood?

I don't think so, because it's never happened to me before...

Did some more research and you're right. Apparently wooden doors can't be set on fire by fire.

I have another suggestion, for the implementation of your idea:

So you don't have to bend down to use the stove and it doesn't look so clunky. Works well in medieval kitchens, etc.

Glad you like the idea.

looks really cool! like!

Cool implementation