Originally Posted by KSagal
I suspect that there is really very little propane used to keep the tank on, and the extra amount used to heat cold water may be more than the small amount saved to keep it warm.
I do not know of a study done, nor the consumption rates however. I am just guessing.
That was what I thought also. We have a Bunn coffee maker that keeps the water hot all the time. They claim the energy used to heat the water from cold is more than keeping hot.
When plugged in, it's a no brainer to leave the tank on electric. When we are only on 30amp we will switch to LP and leave it on unless we aren't using the a/c. I'm not worried about the cost of LP but it's a PIA to drive somewhere to fill the giant tank and usually expensive to have it delivered.
The ambient temperature would have an affect on the LP consumption of course. If you are camped somewhere that it's 100° the tank will keep itself warm. If you are camped somewhere that it's 30, you need to drive south