Question Powering automatic fridge and heater pilot ignitors

[Erik]

My new to me 2006 four winds chateau has automatic pilot ignitors that work fine when plugged into the power grid. My question is, is there any way to run these off the vehicle battery? I'm assuming there is very little power required to be able to run these ignitors off-grid. Or will I have to get an inverter onto a 12v battery, and plug in the RV to that?

 

[TheLooks]

Have you tried using the appliances with 12v only? Most campers I have ever seen had dual systems in them.