Yates Caravans recommend that you change the Glycol fluid in your

Alde Central Heating System to maintain a consistent level of

performance and corrosion protection when heating your caravan.

At your second annual service, your Alde Water Heating System should be changed to ensure your warranty is in tact.  


The Alde Water Heating System is a closed loop system for radiators, which requires the water mixture flowing around the system to contain corrosion inhibitor(antifreeze) and water in a 50:50 mix.

This water mixture has to be drained and refilled periodically dependent on the previous mixture and type of antifreeze / corrosion inhibitor mix used. If filled with a Blue, Green fluid the silicate inhibitor usually gives a 2 year corrosion protection. Purple, Magenta G12++ or G13 silicated OAT inhibitor offers 5-year corrosion protection. As mentioned the corrosion inhibitor has a limited life, after it has expired the system will have no corrosion protection, which should be avoided.

Water should be clean and fresh. Antifreeze containing phosphates should only be mixed with distilled water.

Yates Caravans uses Long Life, 5-year premium quality, Alde Protective Premium G13 mixture to save you time and money. We have specialist equipment specifically designed for changing this fluid over so you don't have to.

Alde Wet Heating & Fluid change