I just found this:
WoodyIsGoody
Minister of Fire
Jan 16, 2017
Those ceramic Meridians are excellent stoves. It's
not inexpensive to cast those refractory ceramic
fireboxes! Like any stove they need properly
seasoned wood and a proper install. They are
constructed of two domed halves, like a clam, so
it's important that the center seam is well
sealed. Since ceramic has negligible
expansion/contraction, even under extreme heat,the
seam tends to be trouble free if done properly to
begin with. Then they kick ass! The magic lies in
the spherical shape of the combustion chamber and
the fact that ceramic is a decent insulator (and
the insulation is continuous and even). This means
all the heat of the fire is continually reflected
back onto itself allowing efficient combustion
temps to build very quickly from a cold start as
well as the ability to cleanly burn low and slow.
Additionally, the ceramic firebox is very
resistant to over firing so they can also be run
very hot without going through too much wood
(since they naturally have very good secondary
burn).
My father-in law has had one for about 30 years
(his is custom installed in a masonry wall with
fan vents) and he uses it every week about 8
months/year. The ceramic firebox stays a brilliant
white color even though he burns low and slow most
of the time. After establishing a fire with two or
three small splits he just waits for it to turn to
hot coals and adds one piece at a time (every two
plus hours). His wood is well seasoned but nothing
special otherwise (primarily PNW softwoods). I've
never seen a woodstove that was so easy to burn so
cleanly at low levels. His glass stays extra clean
with hardly any effort and it's very cool to see
one split glowing by itself with secondary flames
dancing above in an otherwise empty firebox. The
clean white walls reflect a lot of the firelight
back into the room.
I've spoken with the original inventor/founder of
Meridian (same guy who was the first to bring
American made Komodo style BBQ's to the North
American market). He's a genius and a very nice
person. Unfortunately, he may not be the most
cutthroat businessman and he has had trouble with
past business partners/financiers/patent
protection and they are no longer available. I
have no doubt it would be easy to get the design
to pass current EPA emissions.
https://www.hearth.com/talk/threads/further-issues-with-old-meridian-stove.154800/#post-2149050
Ok thats great woody likes them. Just because of that i would no longer consider buying one. Its a safe bet that what ever he said is completely opposite of the truth.