Black and gray tank heaters.

I bought these 12v tank heater pads and two heat pads to go next to the drain valves.




I bought a 4x8' sheet of, look like plastic cardboard and a roll of
Reflectix that I will cover and help insulate the tanks.




I got the pads installed and got them wired enough that if I need them I can just plug them in.

I still need to make the cover and wire the heating pads to a switch.

They have built in temperature sensor to turn them on and off.