This is probably our favorite upgrade. Nothing better than a hot shower after a long day in the wilderness. This system runs off the onboard propane and water supply. Simply turn on the shower head and the heater automatically ignites giving you instant hot water. The heater is mounted inside a Pelican case to provide a waterproof and dustproof storage. This option is available on either unit but does require the water and propane kits. Check out the video below for a quick run down.