Cleithrum

I've had a similar size non-insulated tent and the little buddy did great for me. Kids were fishing without coats on.  Certainly wasn't fishing in extreme weather or anything with kids.

Space is harder to say...probably depends on your kids. That space heater will melt coats/pants really quick if they get too close so that's something to watch with kids. If you smell something, it's already too late ha,.

Fantastic.  Call in the air strike. 

What a beauty!

I suspect gluing it on or adding hardware will negatively impact the action. 

gross