Gas water heater draft hoods provide additional air for the combustion process gases, to be properly pulled out from the burner chamber (base of the water heater), into the water heater vent pipe and the chimney.
Mycelium is a block added in Minecraft the same time as the introduction of the Mushroom Biomes in Minecraft 1.9pre1. Mycelium can only be found and only can be found in Mushroom Biomes. Mycelium resembles dirt in that it can be broken with a shovel and it without a 'Silk Touch' enchanted tool it only drops dirt when broken. Mycelium also lets off a small particle effect the same as Bedrock.
What is Mycelium. The word mycelium literally means âmore than oneâ. It is actually a plural form of the word Mycelia. The word has New Latin and Greek origins and was first coined in text in the early 1800âs, and refers to the thread-like body of a fungus. The main part of the fungus is the mycelia, which lives inside the substrate (wood, straw, grain, etc).