The 15 mm Inline Electrolytic Scale Inhibitor is a compact, WRAS‑approved solution that protects boiler pipes and hot‑water circuits from limescale build‑up. Designed for water‑to‑water heaters, combination boilers and any heating system where hard water is a concern, this British‑made unit releases a low level of charged zinc ions as water flows through it. The ions cause hardness salts to clump together and pass straight through the heat exchanger instead of forming stubborn deposits.
Key benefits
– Energy savings – reduced scale means the boiler runs more efficiently, lowering your gas or electricity bill.
– Zero chemicals or power – the device works passively; no electricity or additives are required.
– Long service life – up to 10 years depending on water hardness and usage.
– Maintenance‑free – no moving parts and no routine servicing needed.
Technical details
– Size: 170 mm × 26 mm (diameter)
– Working pressure: 10 bar at 20 °C
– 15 mm compression fittings (compatible with standard pipework)
– Installable horizontally or vertically; non‑directional design.
Installation tip
Fit the inhibitor where it can be accessed for inspection. Use a square‑cut pipe joint and tighten the fittings with a 24 mm spanner. Add an approved check valve or equivalent back‑flow prevention device at the supply connection to meet Building Regulations Part L requirements for water hardness above 200 ppm.
Keep your heating system running clean and efficient with this reliable limescale guard – a simple upgrade that pays for itself over time.
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