I am new to the hobby and just bought this controller thinking I could plug both my primary and backup heaters into it. The equipment has heat and cool outlets on it though. My house stays cold all year so cooling it isn’t a concern I have. Should I have bought the 306 instead to make sure that if one of my heaters malfunctions my fish don’t boil or do I need 2 controllers? I thought the WiFi would be helpful but guess I didn’t think it through.

