Product Uses Using Fernox Central Heating Energy Saver F6 can result in a gas consumption saving of 0.8% or £12.13 on unscaled boilers and 1.2% or £18.20 on scaled boilers. Fernox Energy Saver F6 is supplied in 500ml bottles and is compatible with all other Fernox products. Fernox Energy Saver F6 has been independently tested by 2 organisations. Application and Dosage One bottle will treat a 100 litre system (up to 10 single radiators). For open vented systems, add the product via the header tank. For sealed systems, add via a filling loop or the radiator using a Fernox Injector.
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