Disbelief will not be suspended

Okay. That's it. 

Look, I can deal with Dunham's inability to draw. I can handle all the animals who wear clothes and speak English. I can deal with the girl mice having one pair of perky breasts. I can accept that there's a generator somewhere on board this ship to power their refrigerator and lights. I can even buy that they have a freaking charcoal grill. 

But a open, apparently brick, log-burning fireplace on a wooden sailing ship?

A bridge too far, my friend.