Frosty, just curious if these 6-brick forges from your photo are using 1/2" or 3/4" size Frosty-T burners? Based on the 3/4" for 350 cu/in rule of thumb it seemed like a 1/2" burner might be enough for ~150 cu/in, but then I looked at the forge on Zoeller's page and he's using his 3/4" side-arm I believe. Thanks!