Avalon direct vent question
I recently installed an avalon trv 864 direct vent fireplace in my basement remodel. I did the install according to the manufacturer specs. My fireplace sits about 15 inches off the floor and then vents dirctly out my wall of the basement, so i have a elbow coming right off the top of the fireplace and about 20" of horizontal pipe going out through wall to termination cap. My question is about the temperature of that elbow and horizontal pipe, when i run the fireplace that elbow gets very hot, if i wet my finger and touch it it will sizzle. is this normal, or should that pipe be cooler than that considering thats fresh air coming in?