Most caravan enthusiasts will ensure the caravan gets a regular annual service. When you retrieve the caravan from the garage more often than not we just pay for the service, hitch the caravan up and tow it home. You should however check that the garage has actually completed a full service including the caravan water heater.
As you tour with your caravan you will be using the local water supply of wherever you have chosen to spend the week or a weekend. It is very unlikely whether you will know if the water is hard water or soft water there for you can only assume that your caravan water heater will have a build up of lime scale at some point in his life.
So what exactly is lime scale and how does it affect your caravan water heater?
The salts in water mainly calcium and magnesium will precipitate out over time. The rate of precipitation can be increased greatly if you heat the water. Lime scale is most commonly seen on heating elements inside your kettle or iron but if you live in an extremely hard water area you can often see it as white chalky streaks inside the bath wash hand basin.
Why is this of concern to a caravan water heater?
If you have ever had to replace the heating element in see you domestic hot water tank you may have been surprised at the amount of lime scale deposits on the heating element. The main problem with this build up of lime scale is that it reduces the efficiency of the heating element as it takes more energy and effort to heat the water on the other side of the lime scale. The same thing happens inside your caravan water heater if not regularly serviced.
If you add in the habit of using this show inside your caravan instead of at the shower blocks on the campsite or if you regularly wash in hot water then you will be using your caravan water heater to supply this hot water for you. It is a misconception that the water has two actually boil for the specification to happen as it all needs to be warmed for it to begin.
By owning a touring caravan you will no doubt spend many weekends at different campsites and not always in the area that you live. You will be well aware that the water supply in different areas will vary in hardness but once you are less likely to know is just how much lime scale has been deposited in state you caravan water heater. For this reason it is recommended that you at least once a year de-scale this unit to help it work more efficiently when you need it.