I am not a metallurgist, but I think Keith is monitoring and will let me know if I am wrong.  I believe the bottom grease/ash diffuser is a galvanized. The heat diffuser is definitely SS.  The barrel of the body, I will have to get back to you on that as I think it is more galvanized then SS.

Are all of those internal guts stainless steel with the exception of the auger tube cover?

I have been told the section highlighted by the green arrow is a heat shield, keeping heat and embers from the grease and ash tray below.

For a first cook those burgers sure look good. Look forward to seeing more.

In my 14 years of Performance Testing pellet units I have never seen a unit get to grilling temperature so fast.  Will get the correct info and not subjective comments as we go, but it was fast.  It was gas grill fast!  I started it, set at 550°.  Went in, mix seasoning in meat, formed patties, put mayo and onion on bun.  Went out to Searwood, expecting to sit down and wait for it to reach temperature.  It was already at the temp you see in the photo.  It appears it will be an impressive high heat grill!

That is it for today.  A LOT has changed in Pellet units since I bought my 1st one in 2002.  There is a lot to cover on this unit, so I hope folks will be patient with the progress, as I have life chores to do also!

Realize I have not done a Performance Test in almost 6 years.  Maybe there have been many advancements in controllers and apps, but this one is pretty sophisticated.  It is going to take several post on each, this is just a tease.

That is the amount of pellets in the Hopper, as you can see by the digital indicator on the far left of controller, it says it is 75% full.

I will do a separate post on grilling area.  3 different size grills.  And the upper grill come out very easy and has what I believe is a very innovative storing system behind the unit.

Again, some assumptions.  I hope Keith will weigh in on and correct me if I am wrong or simply do not know the function of certain items.

I believe the U shaped big piece is both ash collection and grease catch and channel.

Interesting diffuser!  Very heavy.  I have been told the section highlighted by the green arrow is a heat shield, keeping heat and embers from the grease and ash tray below.