I was out puttering around the camper the other day and saw a wasp hanging around the vent on the water heater. I thought to myself "that guy is looking for a place to build a nest". A couple days later I found him and a small nest started in the corner of the opening.
He had helped himself by squeezing in these tiny louvers in the door.
My solution was a piece of cheap aluminum screen. I bought a roll of screen from Home Depot for about $6, it was the smallest repair screen they offered.
I used RED high temperature RTV because this door will get very hot and any other silicon will break down and fail.
I made and outline with tape, then make the inside box. I cut the screen down to fit inside the white line. I then took the inside masking tape box off in one piece and centered it on the screen. I held the screen in place with one hand and applied the RTV with the other until I had a nice glob all the way around.
I timed a one hour wait before I pulled the tape off. In retrospect I might only wait 30 minutes next time. The RTV had dried too much and wanted to come off on the tape. Razor cutting the edges did help get the tape off. The wasps will not be making next in our water heater any longer and no holes in the door to look at.
That's a great idea.
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