Travis Forge

I will pull further away from opening and build out taper as needed. Thanks for the help!

First off, thanks to all if you vets that take the time to provide such good advice. I've been lurking and learning for a while. I recently finished my forge (okay so I still need to paint it but it's up a running). Here's my set up. Forge is 20lb. Propane tank converted to forge with two layers of 1" ceramic blanket, rigidized and covered with 1/2 " of kast o lite. Topped off with a coat of plistix IR. Two 3/4" Frosty T burners with 6" pipe and .35 tips. Bell reducer is 3/4" to 1" with threads ground out. Ceramic fiber blanket tucked in around pipes and rigidized to avoid back draft. The bell reducers are getting as hot as the interior which makes sense as they are in the same environment, but I remember having read that the flames should be igniting outside the burner tube. Even outside of the forge the bell reducers eventually are getting red hot but I can't determine if flame is igniting in the tube or not. The flame is blue. Is this okay or am I risking some dreaded mishap? See photos provided.