Winter camping in my HTT.
Next month I plan on taking the family out for a few days in Mammoth. A local ski area in Central California . Normally we would go to Big Bear, our local mountains, but the snow is not consistent there.
I have read a bunch of posts here and have already installed a tank heater on my fresh tank. I have everything to wire up two more to my grey and black tanks. If I don't get around to it I will use RV antifreeze. I also wired up heat tape along the fresh water line and waste lines up to the valves. I am in the process of insulating the lines inside where they run against the inner wheel wells and out walls. I am debating whether or not to install shut off valves to the outdoor shower and drain it. I have a set of gizmos, but only plan on using the front bunk. I am thinking I will lay down some reflextec and a comforter below the heated mattress and along the sides. I have two ceramics heaters and will run one from the TT and the second from the outlet on the post. I will run the second heater on low and also use the post to run the heat tape. I may run one or the other off the dedicated breaker to the hot water heater.
The park only has power to the sites. I will fill my fresh tank when I get there. We will shower and use the facility restrooms except at night. There's is no way the DW is going to suite up when it is in the single digits to use the restroom.
Other than that I have removed all the dummy panels in the cabinets and plan on leaving everything open with the heaters on. I may close up the cabinets next to the side bed if I install the shut offs for the outside shower though.
Now for my question! The water lines run through the floor below the entrance from the hot water heater to the sink. So in that location there is only a thin piece of plywood between my hot and cold lines and the outside environment. Day time temps are currently in the thirties with night time lows in the single digits. My thought was to insulate some heat tape the bottom of the TT below that area to keep the lines on freezing. Is that overkill? Should I just do the insulation or is this an issue I should worry about?
Any thoughts would be very helpful on this or anything you think I might have overlooked. This will be our first time out in temps this low.
2015 Flagstaff Shamrock 233S
2012 Ford F250