CrowBean said:
The EGO is being installed in 3 weeks after i build the hearth out of stone. I will definitely update you now that i am addicted to this forum and pellets! The ductable units are very nice but i end up getting the ego, install, tax, ash vac, 2 cleanings for 4000. The ductable units start at 4500. Alittle too out of my price range after install and other goodies but a great design. I am very excited about the features and the possible 90 percent efficiency.
Sounds like a very nice unit! Does it use US standard 3" pellet flue pipe?
I am interested in the ducting because we had a heated debate about it.

Ducting is not against the current codes but having a flange like these stoves have make it more acceptable.
See debate
https://www.hearth.com/talk/threads/76419/
From Manual
CONNECTIONS OF HOT AIR DUCTS FOR
SUITE/CLUB/MUSA COMFORT AIR MODEL
Once the stove is in position, you can begin installation of the hot air
ducts.
Comfort Air stoves are provided with an air deflector E as standard. This
means that the rear flange for hot air outlet is connected to this
deflector, which allows the hot air to be directed to the right and left of
the room, in case the channelling of hot air is not desired.
If you wish to channel the hot air, the deflector E must be removed.
Connect the soundproofed connection F (optional) that makes the
output from square to round 3â€, and then make the various connections
through the wall using only “type B†vents. To transport hot air inside a
wall use the proper “type B†oval ducts suitable to be walled in (see
connecting examples in the figures on the right)
The air outlet heating air can reach very high
temperatures, up to 180°C: it is therefore necessary
to use “type B†vents where it may come into contact
with flammable surfaces or that are affected by the
temperature (e.g. discolouration of paint, ducts for
electric cables, plasterboard, etc.); it is also
necessary to protect people and animals from
voluntary or accidental contact. In any case comply
with the regulations and laws in force in the region
where the product is installed.
It is advisable to provide insulation along the entire
route of the pipe to decrease dispersion and increase
the heat energy in the environment.
A pipe which is inserted in the wall must be properly insulated so that it
does not lose heat and so that air outlet is silent.
8 meters is the maximum suggested length for
ducting hot air in other ambients.
The recirculation of air in the room occurs using the perforated sheet
metal placed in the rear of the stove C and the holes placed on the
metal sheet bottom
It is possible to choose the volume of air you wish to discharge from the
front part and from the rear part of the stove in an independent
manner, by adjusting the ventilation power directly with the remote
control.