2. Heater tanks come in different sizes. The most common RV hot water tanks are 6 and 10 gallon sizes, though there are larger and smaller ones. The larger the RV, the larger the tank you will want to have.
3. An RV tank is significantly smaller than a home water heater tank. The smallest home tanks range from about 40 to 50 gallons; around five to ten times the size of an RV tank. The hot water in an RV is going to run out much faster than at home. Remember to use hot water in the RV sparingly. Try turning off the water while soaping up in the shower, and fill the sink with water to wash dishes rather than just letting the faucet run.
4. You can take a longer hot shower simply by turning on just a small amount of very hot water first followed by the cold.
5. Special shower heads allow for longer RV showers. There are many shower heads that use less water in an RV allowing for the RV users to enjoy a little more time to freshen up. If you find an RV with one of these, it is a great bonus. They can also be purchased from RV camping stores.
6. Make sure to drain the tank before long seasons of non-use if you own your RV. You don’t want the pipes to freeze and crack during colder months when not in use.
7. Make sure the bypass valve is switched off before heading out on a trip after non-use. You don’t want to heat a tank with no water in it as you could cause serious damage.
8. Avoid corrosion with an anode rod. Using an anode rod re-directs corrosion from the tank to the rod. Anode rods are cheap (about $20 ) and can increase the life span of your tank exponentially.
9. If the water heater is on and working, but only lukewarm water is coming out of the faucets, check the hot and cold faucets to the outside and make sure they are off. Leaving these on can cause hot and cold water to mingle and keep hot water from running inside the RV.
Knowing how the RV water heater works will help you to have a comfortable and more enjoyable camping trip.