Yes, you can typically use a propane fire pit during a burn ban in Washington State. Burn bans' primary objective is to restrict activities that contribute to air pollution and increase the risk of wildfires. Propane fire pits are considered safer alternatives and are generally permitted even during burn bans.
During burn bans, wood-burning activities are typically restricted, including the use of wood-burning fire pits, bonfires, and certain types of outdoor cooking methods. However, gas fire pits, such as those fueled by propane or natural gas, are usually exempt from these restrictions due to their cleaner burning and lower risk of sparking wildfires.