When using a wood pellet grill, it is important to ensure that the temperature is set correctly. If the temperature is too high, this can cause the pellets to burn quickly and create excess smoke. To prevent this from happening, make sure you are using enough pellets for your desired cooking temperature and adjust the settings accordingly. Additionally, check that all vents are open so air can circulate properly and keep temperatures consistent. With proper maintenance and use of your Z Grills wood pellet grill, you should be able to avoid excessive heat buildup in your smoker.