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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
Energy-Efficient Design: Minimizes energy usage while ensuring consistent and reliable heat output
Allows automatic shut-off of the system fluid under the control of a room thermostat or another electrical switching device
making it easy to reposition the thermostat as required
Non-foaming formula for safe and efficient use
Fernox F3 Express 400ml | Fast-Dose Heating System Cleaner Varme Electric Underfloor Heating Carbon Film Kit 130w 160w Energy-Efficient Design: Minimizes energy usageFernox F3 Express (Aerosol) 400ml Fernox F3 Express is a pH neutral, non foaming cleaner designed to remove sludge, scale, and debris from central heating systems. It helps restore efficiency, reduce boiler noise, and prepare new systems by clearing out flux and installation residues. The Express canister uses Barrier Pressure Pack technology, which keeps the propellant separate from the active product, preventing air from entering the system and
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