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Zilmet 5L Extra Cooling Vessel

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We recommend the use of an Extra Cooling Vessel when installing any evacuated tube collectors, if the length of pipe between the solar panels and the expansion vessel is less than 10 meters then it is essential that an Extra Cooling Vessel is fitted.

If the collectors begin to stagnate and fluid starts to boil, then it will force it's way back down the return pipe in the form of steam. If the steam makes it back as far as the expansion vessel then it will quickley destroy the diaphram in the expansion vessel. Fitting a 5L Extra Cooling Vessel adds an extra 5L of fluid that needs to turn to steam before it gets to the expansion vessel.


  • Model: 2000120004
  • 34 Units in Stock



This product was added to our catalog on Thursday 08 April, 2010.

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