Atwood 8535 IV Hydroflame Furnace

Problem: My Atwood 8535 IV Hydroflame Furnace is in a 2002 Pace Arrow 35G motorhome and is only putting out about 90 degrees at the ducts. I went thru several items to find the problem, but I wasn’t able to solve the problem until I came across a video at myrvworks.com. In the video it is mentioned that in Florida, gnats can enter the orifice of the 

Solution: After watching this video at myrvworks.com I removed the burner assembly, removed the orifice, and found a large amount of gnats in the tube assembly. After cleaning the tube assembly, I reinstalled the orifice and burner assembly and not I get heat at 150 degrees +- at about 50 degrees ambient temp which is about normal.

Below are the gnats that I took out of the burner tube.