Using your Nella Grey Classic Wood - Fired Brick Pizza Oven is a breeze. First, place dry wood in the oven and light it. Let the fire burn for a while to heat up the firebrick floor and the refractory brick dome. Once it's hot enough, place your pizza inside through the 16 - inch wide opening. You can watch the pizza cook through the viewing window on the stainless steel door. If you want to use the rotisserie function, insert the spits through the holes in the door. When using the oven, make sure to place it on a flat and stable surface. Keep flammable materials away from the oven. Wear heat - resistant gloves when handling the door or any hot parts. For maintenance, clean the firebrick floor regularly to remove ash and debris. Check the rock wool insulation for any signs of damage. If you want to customize the exterior, you can use tiles, stucco, or stonework. Remember to let the oven cool down completely before any cleaning or customization work.