I have a Brinkmann electric. Temp is 260. Need to drop this by 25-40 degrees. Have seen several mods but no specifics on the thermostat or rheostat. Hardware store dimmer switches are way to small (600 watt MAX). The element for Brinkmann is 1500 watt. Only want to spend $15-$25, not $60-$90 one would cost from Granger.