Burnham ES2 IQ Panel Bypass: Safe or Risky? A Burnham ES2 boiler can be a solid home heating system. But error codes can make any homeowner nervous. That is especially true when the boiler will not fire. One homeowner had a Burnham ES2 boiler with an IQ panel installed. No extra IQ options were being… Continue reading Burnham ES2 IQ Panel Bypass: Safe or Risky?