Hi all , I could use some advice about installing / plumbing in a batch type heater to my little Floating tiny home
The goal here is to construct a simple batch type heater on the roof of the little boat and heat the water during the day.
I would like to drain this water back into an insulated tank , then pump it through to my shower using my 12 volt dc pump.
I am building an experimental heater made of PVC pipe to try out some of the possibilities .
The issue I have with this is , I am worried about potential pressure build up in the batch heater , so my thoughts are to only partially fill the batch tank to allow the water to expand inside the tank as needed .
How could I then mix the water with cold to temper the water so I don`t scald myself ?
The other way is to use batch heater as a pre- heater for a small electric hot water tank when connected to mains power.
This part is the difficulty , because I can only see this part of the system as a closed , pressurized one ?
I hope I have asked the right questions the right way.