This looks like an amazing burner. However, I don’t care for the fact that the air intake cannot be locked in. I don’t understand that logic. Every burner I have worked has screws that lock in once the air / gas balance is achieved.
So, needless to say, adjust the air intake for a perfect blue flame with ZERO yellow tips and hope it stays there, particularly if you choose to use the burner indoors. Just a safety tip.