I have older 8ft TC that I just changed the furnace in since the old gravity furnace died of old age.It was only 40 yrs old. Got a new furnace that they say draws 2.7 amps. Now I need to upgrade the...
I would go with the 2 12V batteries as it gives you more options.
When we camp at the ski hill we don't need the genny if it's only 1 night on 2 AGM 12v batteries. For the second night we need to add some charge to the batteries with the genny.