The previous owner had installed an aftermarket gas Hot water system. This works great. You will see by the pictures it is mounted within a standard house Electric Meter box. The brand of the HW system is country comfort. The previous owner only had it going to a tap mounted on the rear bar and did not have power or gas going to it. Since then I (experts done this one) have permanently installed a new gas line to the unit with its own shutoff. I ran 12v power to it that comes from the Setec unit on its own fuse to a 2 way switch in the van near the sink and then to the unit. I have also routed the HW into the mixer tap in the van. There was also a 12v pump installed but this was only for the HW system and the external tap. I have since routed from the pump to the cold side of the mixer tap. The cold water also goes to the front A frame tap as this all runs of the 12v and the van tank. I have also put shutoff valves to switch between mains and tank for the unit and also if I want to hook up an external water supply from a water jerry can that the pump can draw from. I also installed a 12v solenoid with the switch in the van to isolate the HW unit so if the kids turn the mixer tap on only wanting cold it does not fire up the gas HW and start running. See photos below and happy to explain further.
HW unit on the left.
To use the unit just open it and turn on the gas bottle and switch inside the van.
Looking from the ground up to the underneath floor of the van. In the PVC tube is the pump which is sealed and protected from damage. Many hoses running for different hot and cold purposes for the van.
This part allows water to be drawn from a jerry or other water source into the pump.
The plumbing tapping into existing plumbing beneath sink all still outside the van (no joins inside to prevent leaks). Also shutoff valves.
Two little black things in the corner are the 12v power switches to the HW unit and to the pump.
