Hello, 

We purchase a used 2013 13" and there are 2 "left over" parts to the Atwood water heater (gas only).  I'm afraid to fire it up without knowing their purpose and where these go.

I have poured over the parts diagram and cannot identify the parts. I have written to Dometic (who bought Atwood), but all they do is send me the same tiny image with blurry printing. I am attaching photos in the hopes that someone can provide a little guidance. 

Thank you in advance and happy Scamping!

Kim