A campervan hot water tank takes space, adds weight and needs access for maintenance. Choose it by counting when you want hot water and what supplies the energy. A tank selected for a weekend of washing dishes may be a poor match for back-to-back showers.
Write down a normal day of use
List the sink and shower separately. Note how many people will use them, when demand happens and how long you can wait for a reheat. Ask the supplier about usable capacity and recovery for the actual heat source. If you mix hot and cold at the outlet, the amount of comfortable water also depends on the incoming water temperature and the equipment settings.
Compare the energy sources you actually have
A campsite hookup, engine-driven system and off-grid electrical supply have different operating patterns. Ask the installer what can safely operate in each mode and how the proposed equipment fits into the available supply. For a winter trip, include filling and reheating with cold incoming water in your brief. Use the tank and heater instructions for installation, temperature controls and protective fittings.
Draw the cylinder and its service envelope
Measure the cylinder with connections and required clearances, then check whether it can be removed later. Mark the space for any valves and for access to drain or inspect the unit. Keep storage away from the routes the fitter needs. Check loaded weight and ask for help locating and securing the tank appropriately.
Frequently asked questions
Can I size a tank by the shower alone?
Include washing up, the number of people and recovery time. Check the balance with your fresh-water tank and the places you can refill.
Should a cylinder be completely boxed in?
Leave the access and ventilation required for the model, and give yourself a way to inspect and service connections.
For the next step, read our guide to planning a folding shower. Share your cylinder dimensions and service access needs with the furniture designer. Start your NEVAN layout enquiry.
