ELSOflow Opal

The ELSOflow Opal is the direct replacement for original Elson Opal products. It is an electrically heated open vented combination hot water storage unit which provides hot water. It can be installed at a high level in cupboard or within a roof space and is designed to maximise the benefit of off-peak or variable electric tariffs.

The ELSOflow Opal allows for a fast, simple installation, and can be supplied with two three-kilowatt immersion heaters to reduce installation time (add at check out stage).

For a direct replacement, simply email the information from the original databadge on the original Elson Opal product to sales@mcdonaldwaterstorage.com or go to the ELSOflow product page to see options available.

For further technical information on the products available online, please select the relevant link below;



  • Maximises the benefit of off-peak electricity supply
  • Integral cold feed tank (including ball valve and float)
  • No discharge pipework or annual maintenance
  • No G3 certification required for installation


Would you also like your ELSOflow Opal installing?

Please click Request Quotation below and complete the required details to receive your installed price.


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