Elementary for Designers,
Simplicity for Installers,
Trouble-free for Owners

Limescale forms on heating elements, creating an insulating barrier that dramatically reduces heat transfer. Just 1 mm of scale on heating elements can increase energy use by up to 7–10% — and that’s the bare minimum. In most hard water areas, deposits are far thicker, meaning energy waste (and the opportunity for savings) is far greater. Elsewhere in the system, limescale still causes costly damage — restricting flow, blocking valves, and wearing out fixtures — but the direct energy penalty happens where water meets heat.

Yes. Halcyan is ideal for retrofit and new build projects. It installs directly in-line and requires no additional space, no drainage, no earthing, and no special fittings. That makes it an exceptionally flexible and specification-friendly solution, even in tight or complex plantrooms. In retrofit, it progressively clears existing scale; in new build, it helps keep systems performing to design efficiency from day one.

Limescale forms on heating elements, creating an insulating barrier that dramatically reduces heat transfer. Just 1 mm of scale on heating elements can increase energy use by up to 7–10% — and that’s the bare minimum. In most hard water areas, deposits are far thicker, meaning energy waste (and the opportunity for savings) is far greater. Elsewhere in the system, limescale still causes costly damage — restricting flow, blocking valves, and wearing out fixtures — but the direct energy penalty happens where water meets heat.

No. Halcyan does not alter water chemistry or remove essential minerals — it simply changes how those minerals behave so they no longer form hard scale. The system is WRAS-certified for use with potable water, giving assurance that the treated supply remains fully compliant and safe for all outlets.

Each unit is engineered for 30+ years of continuous service with zero maintenance. No salt bags, no chemical drums, no power supplies, no drainage connection, and no service contracts. That means simpler design, lower installation cost, and a lighter load for facilities and maintenance teams — fewer manual handling risks and fewer callouts.

By preventing scale from forming on heating elements, Halcyan stops the 7–10% per-mm energy losses that quickly accumulate in untreated systems — and most systems have far thicker deposits than that. Real-world results include significant reductions in gas and electricity use, lower carbon emissions, and better equipment lifespan. In short: cleaner heat exchange surfaces, lower bills, and more consistent performance across the whole estate.

Halcyan systems protect assets for clients including Royal Bank of Scotland, Vodafone, Rio Tinto, Standard Chartered Bank, and numerous universities, hospitals, housing associations, and hospitality groups. Our technology is proven across commercial buildings, social housing, healthcare, manufacturing, and education — and the same core solution also benefits residential users.

Domestic installations typically take under an hour. Commercial installations vary with pipe size and access but are quick, simple in-line fits — with no need for drainage or electrical connections. The range covers approximately 5 L/min to 7000 L/min, supporting everything from small properties to major industrial applications.

Halcyan is WRAS-certified for potable water and consumable-free, producing no effluent, no brine discharge, and no waste water. Unlike salt softeners, there’s no carbon footprint from salt production, no daily backwash water loss, and no saline discharge into rivers or watercourses. It’s a cleaner, more sustainable solution that reduces environmental stress on freshwater systems. For maintenance teams, it also means no more heavy salt bags or regular servicing — just easier, safer work.

By preventing and removing limescale, Halcyan protects heat exchangers, valves, pumps, and fixtures, reducing unplanned maintenance and extending asset life. For design engineers, it simplifies the specification and design process, removing the need for softener tanks, drains, electrical feeds, and backwash provisions — lowering plant cost, installation time, and long-term OPEX. It’s a rare combination: high performance, minimal design complexity, and true sustainability.