Originally Posted by Peartree1
This is my first day on Forum, yippee!! I have 2007 8315ss and my question is how long can you expect to be able to use heated tank option before battery draws down? I have already dewinterized my tanks and now they are saying it will be freezing this weekend, any solutions please. Thanks in advance
Welcome to the forum.
I would be happy to test how many amps they draw using my batter monitor system but unfortunately even with the switch on the thermostats on the system does not turn the heaters on until the temps drop below a certain level. You might look online at the different aftermarket tank heaters and find out what they say for amperage draw.
Unfortunately the stock batteries that come with most RVs will hardly get you through a cold night running the furnace so I wouldn't be hopeful that they will run the tank heaters for too long either.