Even in Central ME you’re nearing the end of the heating season. Use your time wisely and look at lots and lots of stoves. Read what others have to say on this forum, then decide what best suits your needs. The reputable manufacturers BeGreen mentioned each have a large variety of stoves to choose from that would suit your needs, and they’ve been making them a lot longer than Bixby.
Advertising 99.7% efficiency intending to mislead you into thinking that’s heating efficiency strikes me as deceptive advertising. I don’t even like Harman advertising the availability of a battery backup option when it’s actually an inverter. Using the same logic your big screen TV has a battery backup option too. Shame on them.