Hey Fred -
Good race to go to! Wish Jr was able to beat out Harvick - but we'll take a second after the Daytona win.
I'm going to have to check out my rig after all you've found with regards to the water heater. I can't for the life of me remember having to turn on both switches.
The screen doors seem to me to be a standard in the industry. I would take a picture of the part you're talking about and bring it to your local hardware store first and if no luck then an RV supply house. Did you try warrior lifestyles?
