Yeah definitely don’t need a cat for extended burns. Controllability is what I’m ultimately after. That was part of my interest in the hybrids. More output for shorter periods like a non cat, but maybe more control? We’ve discussed the T6, but do you feel those other non cat stoves are that controllable? I’ve ruled the Regency out for fitment reasons.Yes, they can, but based on the requirements it doesn't sound like a cat stove is needed. The Lopi Liberty, Osburn 3500, Pacific Energy Summit or Alderlea T6, all fall in the 12 hr. mild weather burn and 8 hrs in cold weather but they have a higher top-end output. In hybrids, the Manchester or GM80, the Regency 3500 are available options.