Originally Posted by Oaklevel
Inside is when you want to use gas, outside is for using electric.
If both are on you are using both electric and gas.
But make sure that the WH is full of water before you turn the electric switch on.
Otherwise you will burn out the electric heating element.
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC