InsulVent WITHOUT insulation

InsulVent Crawl-Space Foundation Vent WITHOUT insulation. 

InsulVent is Just a Darn Good Vent for crawl space foundations even if you don't need to insulate.  It still allows you to open the vent door should you need to replace the screen.  Additionally, if you need to get long slender items into the crawl-space (for example, plumbing pipe) you can simply open the door and slide it in rather than trying to feed it in through the in-house access.

All the good things about the InsulVent are available to you even if your climate is so mild that you don't need to insulate your foundation vent.