Use fire bricks for a brick pizza oven. These bricks are typically used for fireplaces and chimneys as they can withstand high temperatures from heat sources. If you attempt to use any other kind of bricks, it’s likely that this material will crack from such high heat exposure in the best case—and potentially explode and cause serious harm in the worst case.

Yes, you can do German schmear on stone. You can account for the more textured and rough surface of stone by using a large paintbrush instead of a putty knife. A brush allows you to drag mortar across the stone to get it into all the cracks and crevices. However, a brush will cover more of the surface, so you may need a wet sponge to scrub excess mortar and expose more of your stone.

On average, a quality exterior brick stain can last between 10 and 20 years, and sometimes even longer. While it will look its best for a minimum of three to five years, its total lifespan depends on several factors. These include the quality and type of stain used, the condition of the brick, and the thoroughness of the surface preparation, such as proper cleaning. Following the manufacturer's application instructions and applying a sealant as a final step is also crucial. The stain's longevity can be affected by your location, climate, and the brick's exposure to harsh weather, high traffic, and other elements. Over time, the stain may begin to fade or look dingy due to weathering, erosion, dirt, and debris. Compared to paint, brick stain generally has a longer lifespan.

Drilling into brick or mortar requires the use of a masonry drill bit. Masonry drill bits appear similar to standard drill bits except for the leading tip of the bit. The tip has a bulky carbide arrow-shaped end slightly larger than the rest of the bit shaft. Standard or high-speed drill bits designed for making holes in wood or metal don’t have the ruggedness or design shape you need to drill into brick. They may not go through the brick at all, and if they do, they’re more likely to overheat, crack, or dull before you finish drilling.