Nexus units from ELCO at heart of urban regeneration project

elco350 Nexus Futura Bitherm heat interface units from ELCO UK have been installed at the Stoke Quay development in Ipswich, Suffolk. The installation also included three R3603 floor standing condensing boilers as well as a Gemini indirect cylinder.

Stoke Quay is a major regeneration project in the historic docklands area of Ipswich, with the scheme creating over 350 new homes. The mixed tenure scheme comprises five blocks of one and two bedroom apartments, as well as 25 four bedroom town houses.

The ELCO products were specified by the Brighton-based M&E consultants PJR Services. Commenting on ELCO UK, Managing Director, Jeff Fuller said: “The development required quite a large heating load, while there were some physical constraints in the plant room. Thanks to their high outputs and compact dimensions, the R3603 boilers made them perfect for the project. We also specifically chose the Nexus Futura Bitherm units as they offered reliable and powerful heat outputs to meet the heating and hot water demand.

“With the project having now been completed and partially occupied, it’s fair to say it has been a success, and we’ve been really pleased with the products from ELCO UK.”

The Nexus units were specifically designed for the Stoke Quay apartments, with top exit pipework to accommodate the design conditions of the project.

Comprising seven models, the Nexus range encompasses indirect, direct, storage and cooling units to ensure there is a product to fit all types of network heating applications. Nexus Futura Bitherm is an indirect wall mounted module which provides central heating transfer up to 19kW and instantaneous hot water services (HWS) up to 70kW. The connections from the centralised system are located at the top of the unit and the connections for the dwelling are at the bottom of the unit, however transition jig plates are available to transform the connections to all-at-the-bottom or all-at-the-top. A central heating system pump, expansion vessel, filling point and water pressure gauge are included.

The Nexus range also includes the Nexus Dual Stage indirect unit, which offers a heat transfer of up to 150kW by utilising a state-of-the-art arrangement of multiple heat exchangers and a highly accurate digital temperature control. This also allows hot water to be delivered across a wide range of demand volumes.

Direct type heat interface units include the Nexus Futura IS and Futura IS/P wall mounted models. While, for applications where hot water storage is required, the Nexus range offers three options: the Nexus S-FS, Nexus Dual Zone ID and Dual Zone ID/D. Completing the Nexus range is the IndirCOOL wall hanging cooling unit, which has a single plate heat exchanger to provide indirect transfer of chilled water.

With a power range from nominally 660kW to 1,043kW, and the possibility to use up to eight boilers in a cascade arrangement, R3600 boilers are ideally suited for larger commercial heating applications. The down-firing water cooled premix burner arrangement of the boilers also ensure maximum combustion efficiencies, while the NOx emissions of the boiler series are also Class Five with the R3600SB models emitting just 11.5mg/kWh – easily exceeding the requirements for the best BREEAM NOx emission rating.

For more information on ELCO UK’s range of NEXUS heat interface units, please visit

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