I have a shop heated with a noncat and a house heated with a cat stove for just this reason. The noncat is always at max output and the cat is almost always at low output. Right tools for the job.As far as OP goes, if you plan to burn 24/7 in the space I would go with a good cat stove. Once the space is up to temp the cat stove will have more flexibility on output. If you will be using it to heat a cold space frequently then a tube stove would be better. Tube stoves have a good high output and will handle being pushed hard better long term.
Myself, my insurance company, and my county permit interpreted the fire code a bit differently than bholler.