Note: When replacing logs, refer to the owner’s manual that came with the heater for correct placement. Log placement is critical. Failure to position the logs in accordance with the diagrams in the owner’s manual may result in property damage or personal injury. Each log is marked with a number. This number will help you to identify the logs when installing. After installation, and periodically thereafter, check to ensure that no flame comes in contact with any log. With the heater set to high, check to see if flames contact any log. If so, reposition logs according to the log installation instructions.