[lostshakerofsalt]

I use the auto-switchover feature. I got tired of having to get up in the middle of a cold night and go outside to open the valve on the other tank. I just check every few days when I am using a lot of propane to see if it has switched. When I used the "keep one tank turned off" method, it never did run out of propane during the day, only at night at around 3 AM when it was below freezing outside.