Hello!
After about an hour and a half the propane inlet pipe was hot up to about where the gas comes in and meets the air (the prebuilt kit type with spinning disk to let air in on top, yes its mortared)
Just making sure its normal, I did insulate that pipe a bit about half way up to pipe with the cermaic fiber blanket, for no reason other than my forge kit came with 500x more than I needed to fill the gap around the inlet and I just wanted to use it for something
and Id like to say, gas is so much nicer than having to use coal
I figure even if it gets hot, its fine as long as it doesnt heat up the tubing thats connected to the inlet pipe and make it loose/melt it.