Circuit Breaker panel 2016 Winnebago Minnie Winnie 22R

[SantinoDad]

I'm planning on changing out the Anode Rod on my Suburban Model #SW6D water heater. Instructions say to "Turn off electrical power to water heater at the switch from the electrical element or a breaker"
Looking at the breakers and fuses in the panel I am having difficulty reading the handwritten notes identifying which breaker or fuse is for the water heater.
One notation says "tank heater" for a fuse. Is that a good bet of which fuse I should pull before draining and removing the Anode Rod?
Is there another way of identifying which breaker switch shuts off the power to the water heater?

[HarryStone]

You could just disconnect from shore power and turn the battery disconnect off. That will remove power.

[cbeierl]

The brochure for your coach indicates it has an LP water heater (i.e. no electric heating element, only gas with an electronic ignition). It should be sufficient to turn off the water heater using the WATER HEATER switch at your monitor panel.

The 12V fuse labelled 'Tank Heater' looks like it's actually for holding tank heater(s), not the water heater.