Mud dauber/wasp screens

I've never removed mine, although the package had the same warning. The only reason I can think of, it's a liability issue. If your furnace is running and someone touches the screen and burn their finger and then try to sue the company they can come back and say it was your fault for the burnt finger because we instructed you to remove it when the furnace is running. Take your law suit somewhere else.

My furnace screen mounts behind the furnace cover plate on the outside over the trailer. I don't think I'm going to remove it and put it back on every time I use the furnace.

I've also stood by and watched mud daubers go right through the screens, and cleaned plenty of insect nests out of screen equipped appliances.

Like most everything else we come in contact with, there is some type of warning involved. My exterior covers warn against installing screens but I did anyway and have had no problems.

I have never removed mine and don't know of anyone who does. :)

I've never taken mine off and have zero issues. Don't see how it would restrict any exhaust.