It's not difficult to replace a refractory panel on a fireplace, but it can be a messy job. Here are the steps you need to take:1. Shut off the gas supply to the fireplace and remove the logs or other decorative items from the opening.2. Vacuum up any ash or debris that may be in the opening.3. Loosen the screws that hold the metal frame around the opening in place and remove it.4. Remove the old refractory panel by breaking it loose from the mortar joints that hold it in place. 5. Clean out any old mortar from between the joints and prepare to install new mortar.

How do you replace a refractory panel on a fireplace? It depends on what type of fireplace you have. If you have a gas fireplace, you will likely need to call a professional to come and replace the panel for you. If you have an electric fireplace, however, it is a relatively simple process that can be done by yourself. First, shut off the power to your fireplace by flipping the breaker switch off. Next, remove the front panel of your fireplace by unscrewing the screws that hold it in place. Once the front panel is removed, you should be able to see the refractory panel that needs to be replaced. Carefully remove the old panel and then replace it with a new one.