Viewing post #2722122 by MoonShadows

cwalke said: I have my greenhouse heater, on a timer, attached to a heavy duty 100" extension cord that plugs in by the garage. Have done this for 5 years and had no problems.

When you say "heavy duty" what gauge are you talking about. If I did that, I would go with at least a 12/3, but most likely a 10/3 which is almost like plugging the heater into a regular outlet. Just curious.