My BESRG has suddenly stopped heating as high as it used too. After 15 minutes the temperature is only 305 degrees. I never tested the temps in the past, but I know it was way higher. I checked the fire ring and each hole has a flame so no blockage, but the flames are tiny. Now some here would be happy to get the temps that low. I've learned how to cook with the higher temps and would like them back. Does this sound like problems with the fire ring, or a regulator maybe?
Mike