redoX Range

Designed for closed-loop heating and chilled water systems, redoX is a chemical-free water treatment range that helps protect systems from corrosion, debris and performance loss. It works by removing dissolved oxygen, magnetite, microbubbles and system debris without relying on ongoing chemical dosing.

Corrosion risk is reduced by removing dissolved oxygen from system water using high-purity magnesium anodes. Lower oxygen levels help create more stable system conditions, supporting the protection of pipework, pumps, valves, heat exchangers and other key plant.

In HNTAS and FairHeat technical guidance, a depleted water system refers to a system where water quality is controlled through demineralisation and the preservation of low conductivity to provide long-term corrosion protection for pipework and equipment. redoX can support this approach by helping control dissolved oxygen, conductivity and system cleanliness.

No. The system provides continuous chemical-free corrosion protection without ongoing inhibitor dosing. This helps reduce chemical purchase, handling, storage, dosing and monitoring requirements over the life of the system.

The three models use the same chemical-free water treatment technology but are designed for different system sizes and applications.
• redoX HP is for domestic heat pumps, low-temperature heating and light commercial systems up to 5m³.
• redoX is for commercial HVAC, chilled water and communal heating systems from 6–100m³.
• redoX HC+ is for data centres, district heat networks and industrial systems from 100–1000m³.

Cleaner, low-oxygen system water can help reduce maintenance demands linked to poor water quality. This may lower the need for chemical monitoring, dosing visits and avoidable maintenance intervention over time.

Cleaner system water from the start can support smoother commissioning and handover, helping reduce call-backs linked to air, dirt, magnetite and poor water quality. This is particularly useful for contractors and commissioning teams who need systems to perform reliably after installation.

Both new-build and existing closed-loop heating and cooling systems can be supported. On existing systems, the technology can help improve circulating water quality by removing dissolved oxygen, magnetite, microbubbles and debris.

Yes. The technology supports the principles of BSRIA BG50, VDI 2035 and VDI 6044 by helping maintain cleaner, more stable system water with low oxygen conditions, controlled conductivity and reduced reliance on chemical dosing.

Yes. For domestic heat pump, low-temperature heating and light commercial applications up to 5m³, redoX HP has been specifically designed to provide chemical-free system protection. It helps protect heat pump systems from corrosion and debris while supporting low-conductivity system water.

Heating and chilled water applications are both supported by the redoX range. On closed-loop chilled water systems, it can help reduce corrosion risk, improve water quality and protect key system components.

Larger systems from 100–1000m³ can be supported with redoX HC+, including data centres, district heat networks and industrial applications. The scalable range is suited to projects where system volume, asset value and operational risk are higher.

For heat networks and larger closed-loop systems, good water quality control is an important part of long-term system management. redoX helps operators take a more structured approach by reducing corrosion risk, improving system cleanliness and supporting ongoing asset protection as technical assurance expectations develop.

Exclusive three-zone technology improves how air and debris are separated from system water. It works as follows –

Zone 1 is a low-velocity area where larger deposits settle out of the water.

The air and dispersion plate then agitates the flow, helping collect more debris in Zone 1 while releasing microbubbles into Zone 2, where they are automatically vented.

Finer particles are captured by the full-body filter before cleaner water moves into Zone 3.

High-grade 316 stainless steel is used for water-contact surfaces because it offers enhanced corrosion resistance compared with standard 304 stainless steel alternatives. This supports long-term product durability, especially on higher-value systems where lifecycle performance is important.

For heat networks and larger closed-loop systems, controlled water quality is an important part of long-term system performance. redoX helps reduce corrosion risk, improve system cleanliness and support the water quality conditions referenced within HNTAS and FairHeat guidance as technical assurance requirements develop.

Optional BMS connectivity allows remote monitoring of anode performance, filter pressure and water usage. This gives building owners, FM teams and operators greater visibility of system condition and maintenance requirements.

The correct model depends on system volume, application, installation requirements and the level of system protection required. eleXion can advise on the most suitable option for domestic heat pumps, commercial HVAC systems, chilled water systems, communal heating, heat networks, data centres and industrial applications.