I want to replace my extremely stiff extension cord that I connect to my JD 4200 hydro unit block heater. I need at least thirty feet so I guess that means I will need to purchase a fifty foot cord. My thinking is a 12 gauge wire should do it unless you folks tell me different. We are having a winter where mornings are below 0 degrees Fahrenheit a few times a week. So I want a cord that will remain flexible enough so I will be able to coil it up loosely when not in use. Does this mean I will need to get a rubber covered cord or are some vinyl cords available that will remain flexible at or below zero?
Thank you for your time and knowledge.