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HPM September 2017

77 U N D E R F L O O R H E AT I N G Nu-Heat highlights the best way to retrofit an underfloor heating system and Wavin explains why it is time for plumbers to take advantage of its growing popularity RIBA CPD approval Devon development shows benefits of Omnie UFH enquiry number 143 Underfloor heating (UFH) can provide a zoneable, controllable approach to heating university buildings which maximises the outputs from energy sources. The installation of UFH at Nottingham University’s GSK Carbon Neutral Laboratory for Sustainable Chemistry is part of an environmental strategy that will enhance comfort levels while ensuring the carbon generated during the building’s construction is paid back over its lifetime. Early engagement between Uponor, the underfloor system provider, and the main contractor played an essential role. For example, it prompted a change of specification from a conventional in-screed installation to reduce the project’s site time and capex costs. Instead, UFH installation was re-designed with the pipework installed within the slab, and this approach reduced installation times, cut material costs, and enhanced performance of the completed system by capitalising on the concrete’s thermal conductivity properties. The first floor installation involved specification of an UFH system compatible with a cross-laminated timber floor substrate. Here, the pipework installation was laid into a pre-routed insulation board along with the heat emission units, then overlaid with board. Involvement of the system provider in the specification led to a reduction in pipe diameter from the 20mm pipe used on the ground floor to just 16mm for the first floor, in line with the project’s aims of minimising material use and embedded carbon where possible while optimising the performance of the building services. www.uponor.com www.hpmmag.com September 2017 One of the UK’s leading underfloor heating (UFH) providers is now offering a Royal Institute of British Architects (RIBA) approved CPD course to architects and construction professionals. The UFH course explores the theory behind radiant heating, the benefits of UFH and the make up and design of a system. The course also explains heat transfer, design factors and component applications and gives participants an understanding of how and why UFH systems work. The one-hour presentation covers: • Theory behind UFH • Benefits of UFH • System components • What influences the output? • System design • Types of floor build up RIBA members can now take the course to contribution towards their CPD qualifications. The RIBA course will complement Giacomini’s existing CIBSE-approved CPD offering on UFH and heat interface units. To arrange a seminar, or for more information, contact Helen Gibbons, Giacomini’s technical support manager on: 01454 311012, or email: helen.gibbons@giacomini.co.uk. A high quality residential development in Devon is making extensive use of underfloor heating (UFH) systems from the versatile OMNIE range. The four properties at Clearwater Court in Clyst St. Mary – two of them conversions of a former industrial building and two new builds – are nearing completion by Vision Developments (SW), creating spacious and energy efficient homes with character. Within the converted paintworks, the modernised masonry construction offers both high standards of insulation and thermal mass while the space heating is being provided by high performance gas boilers distributed by two OMNIE solutions. The boiler in each property is connected via two of OMNIE’s Axios manifolds located at ground floor and first floor level. Across the kitchen and other downstairs rooms, OMNIE’s Staple system has been installed over insulation before being covered by a screed. In the bedrooms and bathrooms, the specification switches to the LowBoard 15 panels installed over the particleboard flooring, with insulation between the timber joists. OMNIE provided Vision Developments and the installer, Exeter-based Radiate Heating and Plumbing, with detailed layout drawings showing the different pipe runs and manifold positions in relation to the room layouts. The design support included heat loss calculations and flow settings for the commissioning of the UFH. www.omnie.co.uk Underfloor heating contributes to pioneering low carbon labs enquiry number 145 enquiry number 144


HPM September 2017
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