Within the Red Hat certification program, the RHCA is considered the most complete (and grueling) certification among the seven major Red Hat certifications. In fact, some equate the prestige of the RHCA to that of the Microsoft Certified Master and possibly the CCIE.
A plumbing fixture like a sink can not function properly without a sink vent. When a drain pipe drains it creates a negative pressure in the sink drain; the negative pressure will pull the water out of the p-trap of the sink that's draining and sewer gases can enter your home if a sink vent is not installed.
Even if your kiln is in a separate area, there are several reasons why you might want a vent. 1. You tend to get better glaze colors and fewer glaze defects. Vents help even out the temperature, bring a lot of oxygen to encourage good color development and, keep colors from affecting nearby colors. 2. If you fire without a vent, you have to prop the lid for the first few hours of a bisque firing. If you use a vent, you don't have to prop the lid. You just turn the vent on when you turn the kiln on, and leave it on for the full firing. 3. Elements last longer. A vent is pretty easy to install. You attach dryer ducting to the vent unit, and run that outside of your house similar to running dryer ducting.