[CobERA]

Tom,

I bought the heater/defroster for my ERA, and for the first few months of driving it (summer) I was not sure I needed it. However, just the other day, I was driving to work in the morning. It was coool and slighty foggy. I did not have the heater valve open yet. At one point, the inside of my windshield fogged up so bad that I could barely see. I pulled over, opened the valve, turned on the heater, and within a couple of minutes the windshield was clear. I have since used it to warm the cockpit a bit on cooler evenings.

Get one!