Oh no! Not another Cracker? But there's always room for one more cracker!

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Hi,
Sorry but I'm not too good on theory but have made a burner for a Cracker. Hopefully the following photographs will help. A small air hole was made in the burner tube in front of the jet. This hole was enlarged until the flame looked right and was controllable high/low.
Small hole.
Pokerburnertuneing01LR.jpg

Larger hole high setting.
Pokerburnertuneing03LR.jpg

Larger hole in low setting.
Pokerburnertuneing02LR.jpg

Test in flue tube same size as fitted to boiler
Pokerburnertuneing04LR.jpg

Pokerburnertuneing05LR.jpg


Hope this might help.

Regards Tony.
 
FWIW, my Cracker burner doesn't burn for beans outside the boiler, but roars away when installed, so be sure and try it installed as well.
 

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