Hi everyone read your post all the time very helpful I've been ponding since 1998 but I'm new to bogs just put one in your last year and loved it I'm an advocate Gardner so this was right up my alley. Would love to leave it all winter but I live in a zone 5 upper Ohio by the Great Lakes so it's off usually by November or December depending on the weather what i would like to know is how early can I start it back up March in April still have some evenings where we get down in the 30s at night didn't know if this would be a problem would like to start up as soon as possible the plants are starting to grow.