Case Studies
University of Bristol Eco-Duo Study
As part of the development process, a four-storey installation of Water Kinetics Eco-Duo pipe system was installed in 2017 at the University of Bristol to monitor the energy saving potential of the pipework system. It was this project that began to really identify the extent to which Eco-Duo saves energy. After monitoring the system for 18 months, Bristol saw a reduction of 52% in KWh per day and, because there was virtually no reduction in temperature from the heater to the outlet, a previously persistent problem with Legionella within the pipework system was completely eradicated.
This project is currently installed within the University and is continuing to improve day-to-day health along with providing significant cost savings.
BRE Study
Water Kinetics have undertaken a comprehensive study with Building Research Establishment in Watford during 2019. The study focused on a comparison of a traditional potable water re-circulation system and the Water Kinetics Eco-Duo pipe system.
The type of pipework, fittings, pump, insulation and heater used was identical for the two tests. The results proved to be very conclusive and mirrored the ongoing testing at the University of Bristol. It showed that Eco-Duo does in fact save up to 50% of ongoing energy costs. It also demonstrated how effective the system is in keeping hot water hot with an outgoing water temperature of 61 degrees and a return temperature of 60 degrees.
Trace Heating System
Trace heating is used to increase or maintain the temperature of pipes in an attempt to control water temperatures. Trace heating can be used to maintain a temperature threshold in order to limit the presence and build-up of water-borne pathogens such as Legionella. This is achieved through lining the pipes with heated wires. Trace heating typically runs constantly to achieve its desired effect.
Purchase Cost – Cable ranging from £6 - £15 per metre and requires a termination kit (£7 - £35).
This does not include a control panel/monitoring system (£100-£200).
Installation – Costs range between £16 - £30 per meter.
Running Costs – Estimated between £3.54 - £6.62 per metre of cable per month*.
For purchase, installation and running of a 100-metre trace heating system for 1 year:
estimated cost between £6,555 - £12,679*
Each subsequent year, for 100 metre system, cost estimated between £4248- £7944*
Eco-Duo does not require the use of Trace Heating as the system maintains a constant high temperature
throughout the entire system.
*Depending on electricity prices
