I am installing a tankless water heater, which is an outdoor model. We are likely to use PEX when redoing the plumbing, but because the heater is outdoors, we will need to have a short, outdoor PEX run.
Are there any preferred ways to protect it from UV exposure? I've seen suggestions to paint it, I'm sure I could make a covering for it, and I don't doubt that pipe insulation would work. Is there a best-practices way though?