Vokèra Fuelsaver

Passive Flue Gas Heat Recovery Device

The Vokèra Fuelsaver passive flue gas heat recovery system consists of a post heat exchanger device which is located between the boiler and the flue terminal, and offers the potential to increase efficiency. It does this by capturing heat recovered from the flue exhaust gases that would normally be wasted. This captured heat is then used to pre-heat the incoming cold mains water supply before entering the boiler, thereby reducing gas consumption and improving domestic hot water efficiency.

The addition of a Vokèra Fuelsaver can save up to 33% of the gas normally required for DHW; save up to 500kg carbon emissions annually and reduces cold water wastage by over 5% annually due to the inlet water being pre-heated.



  • 5 year parts and labour warranty
  • Reduces gas consumption by up to 33%
  • Reduces carbon emissions by up to 500kg
  • Reduces cold water wastage by 5%
  • Listed on PCDB and validated for SAP 2009
  • Compatible with Vokèra Unica iVision C and Compact A combi boilers

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