Quote Originally Posted by GTOJOE View Post
Mine often gets a dirty grime sort of fog on the inside after sitting in the sun. Needs to be wiped of with a cloth. What the hell is this? I thought perhas there was a leak somewhere from the heater but there is no fluids leaking inside and no heating issues. Plus I haven't used my heater since I lived in Melbourne 18 months ago.
+1 to this. What is this?