In this video I install a Glind Heat Exchanger. This uses your coolant system to heat water for a shower or sink. I am using mine to heat water for showers when I am on the trail. I also install a CVT Shower Awning. I like this system because it is integrated into the van build and I don't have to store extra components like the hot water heater that I used before.
Glind Heat Exchanger (Click Here)
CVT Shower Awning (Click Here)
Joolca Water Pump (Click Here)