Source: https://tendernation.io/opportunities/01a13be5-5af4-72b2-8f67-acef6c4e340c/appointment-of-a-contractor-for-the-flushingtreatment-of-heating-systems awarded GB negotiated without publication procedure # Appointment of a Contractor for the flushing/treatment of heating systems [Royal United Hospitals Bath NHS Foundation Trust](https://tendernation.io/buyers/royal-united-hospitals-bath-nhs-foundation-trust) Estimated value Not stated Published 28 Jul 2026 Deadline Rolling deadline ## About this tender The Royal United Hospitals NHS Foundation Trust has identified an urgent requirement for the flushing/treatment of heating systems as part of its wider Decarbonisation Project. The Trust is seeking to improve the operational efficiency, reliability and longevity of several Low Temperature Hot Water (LTHW) heating systems across the estate through the implementation of a comprehensive water treatment and side-stream filtration solution. ### Docusign Envelope ID: 17C14E0A-B843-84EA-8335-50B8813EFC76 The existing heating systems require ongoing protection from the adverse effects of corrosion, scale formation, suspended solids, magnetite accumulation and air ingress, all of which can reduce system efficiency, increase energy consumption and contribute to premature plant failure. As part of the Trust's decarbonisation objectives, maintaining optimal water quality within these systems is essential to support efficient heat generation and distribution, reduce energy losses and minimise maintenance requirements. The proposed solution comprises the installation and commissioning of ENWA EnwaMatic® side-stream filtration and water treatment units across six separate LTHW systems serving the Wolfson, MRI, South, X-Ray, Z-Level and Central plant areas. The equipment provides continuous side-stream filtration to below 10 microns, pH control, corrosion inhibition, scale control, air removal and reduction of bacterial growth potential within the heating systems. The solution is designed as an alternative to conventional chemical dosing regimes and is intended to provide long-term maintenance of water quality and system performance. The requirement includes the supply of filtration units, automated backwash controls with Building Management System (BMS) integration, dedicated circulation pumps, break tanks, delivery and manufacturer-led commissioning. Manufacturer commissioning is required to validate equipment warranties and ensure the systems are operating in accordance with the intended design parameters. Delivery and installation of the water treatment solutions will support the Trust's objectives of improving heating system efficiency, reducing lifecycle maintenance costs, protecting critical infrastructure and contributing towards the Trust's sustainability and carbon reduction targets. Read full description Source Find a Tender (UK) · Notice ocds-h6vhtk-06d4d0-2026-07-28T09:36:35+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-06d4d0-2026-07-28T09:36:35+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Royal United Hospitals Bath NHS Foundation Trust: past awards and live tenders](https://tendernation.io/buyers/royal-united-hospitals-bath-nhs-foundation-trust) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Engineering works and construction works – Integrated Partnerships Framework · Northern Ireland Water · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a156a9-7b9a-73c9-b710-2a5021d3fa0d/united-kingdom-engineering-works-and-construction-works-integrated-partnersh) [Hdc-1714 wadkins pavilion refurbishment · Harborough District Council · 39 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a155bf-f664-72f9-9823-a85d6cddbdc6/hdc-1714-wadkins-pavilion-refurbishment) [Design, supply, and Installation of Newbiggin Skatepark Extension · Newbiggin Town Council · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a15552-19a2-7348-a5cc-3f5ae51ef934/design-supply-and-installation-of-newbiggin-skatepark-extension) [Tender for the design, supply, delivery and installation of a modular UNIT and associated works at ARC healthy living, irvinestown. peaceplus funded upgrade works · Fermanagh and Omagh District Council · 14 days left · 2 Nov 2026](https://tendernation.io/opportunities/01a15552-1b74-73ec-a6f6-a1af37959997/tender-for-the-design-supply-delivery-and-installation-of-a-modular-unit-and-a) [Architectural, design and building consultancy services - Dalby Visitor Centre · Forestry Commission · 25 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a15552-1b8a-7041-80fb-e4943876fc38/architectural-design-and-building-consultancy-services-dalby-visitor-centre)