How-to Video How to set up, use, and pack away your SimmerShield Fuel Valve For best efficiency, operate your SimmerShield at low power. Tune it to a quiet flame by ear, or use these pictures as a visual reference. Smooth blue flame – QuietJust Right: leave it alone Smooth orange flame – SilentToo Low: open valve slightly Shaky blue flame – Loud roarToo High: close valve slightly Written Instructions Flip through the images below, or download the mobile-friendly PDF version for offline use in the field Download PDF Still Here? Buy Now