sch911 wrote:
Generally for TT's heated tanks means 12v heat pads attached to the bottom of the tanks right?
No, not usually for a travel trailer. Heated for a TT usually means that the heat ducts from the furnace are in close proximity to the holding tanks, which are usually enclosed anyway.
OP, if you are planning to camp in COLD weather and want to use electric heat I would suggest you get some electric pads for your tanks. If you use electric heat inside the camper, you will likely not be using your propane heat much, which means no hot air is going through your ducts and your tanks aren't getting any heat.
Any yes... propane heaters go thru a LOT of propane in comparison to anything else.