Cat stoves are best at low and slow but they are capable of 800 degrees just like a noncat. Once you warm up the space you’re going to want to turn the stove down to maintain temperature with a long, efficient, clean burn. If the space is small and doesn't lose much heat you will really like the cat stove’s ability to run low and slow.Oh I see. Cat stoves burn longer and slower so I want a non-cat stove. The supreme NOVO 18/24 aren't cat and have BTU of 60000-75000 which seems potentially appropriate?