I'm going to write an article for my homebrewing website
about designing the wind shields around the burners in a RIMS or HERMS system. It seems that the wind shield design is something that can have pronounced effects on the burner's efficiency as well as heat transfer and its intended purpose of keeping the burners from blowing out from high winds.
I'd like to get some feedback from brewers that have tried different designs and based on actual performance, whether the designs worked or not. Any other ideas on wind shield design would be appreciated. I'll let the thread run for a while then compile the best data and write the article. Hopefully it will help others who may not have considered the impact the shields have on burner performance.