It's commercial.

They often require wider clearance between stove and any surface than residential models, so you may run into building permit issues and layout problems.

Thanks, I'll keep looking for a residential model.

Comstock-Castle is the oldest stove mfgr in the USA. Since they
still insulate the sides of their commercial stoves the clearance
from combustibles is far less than all others. They have a FAQ
section on website ref using in residential setting. I have one & found
installation according to commercial code wasn't hard & price was
actually lower than a lot of residential stoves.