Brings back childhood memories of going to Grandma's on Thanksgiving or Christmas, the whole family bundled up in our heavy coats and all the windows fogged up, with just a little clear patch in the windshield to see out of! And we weren't in an import..... I just think my parents truly believed using the heater wasted gas!Limited recirculation is a must for the average driver. In the north it's common to see imports driving down the road in winter with side windows fogged or frozen up due to running the HVAC in recirculation so they get the quick heater warm up, but the moisture inside doesn't get vented out, so the knuckleheads drive around with only a clear windshield. Rear defrosts usually time out.