This is not accurate. I wasn’t going to comment except that it is the top reply and I don’t want misinformation to be spread if someone comes across this later.

The vent kit, including the hose, comes from the kiln manufacturer and is designed for this specific kiln which is intended for domestic use. I linked the kit in my post.

The vent takes in room air in addition to the kiln air and the temperature of the discharge is less than 160 F, or 71 C.

And yes, my homeowner’s insurance is aware of the kiln.