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eading British ventilation manufacturer Vent­Axia has welcomed the Government’s Clean Air Strategy, launched on 14th January 2019, which highlights


the importance of clean air in the home. The strategy sets out how the Government aims to


tackle all sources of air pollution with indoor air quality (IAQ) a key part of this. As such, the document proposes a number of simple measures to reduce air pollutants in the home, including regularly ventilating dwellings. In addition, the strategy also outlines the Government's ambitions to reduce outdoor air pollution to help make our air healthier to breathe. VOCWithin the strategy the Government suggests a number of practical ways to reduce indoor air pollution


WHAT’S NEW SPONSORED BY Vent­Axia welcomes Government clean air strategy


from VOCs, including non­methane volatile organic compounds (NMVOCs). These include switching to lower VOC alternatives, such as unperfumed cleaning products. It also recommends ensuring homes are well ventilated to avoid the accumulation of emissions from multiple sources. Confirming the importance of IAQ, the strategy also


states that in spring 2019 the Government will be consulting on changes to Building Regulations standards Part F for ventilation in homes and other buildings, to help reduce the harmful build­up of indoor air pollutants.


www.vent­axia.com Specialised valve training room created at Pegler


expanded its training facilities in Doncaster to offer an even greater interactive experience. The specialised valve room


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offers more hands­on training for individuals and companies to facilitate greater understanding and more experience in balancing and commissioning valves. It houses a Grundfoss Magna 3 pump which delivers a head pressure up to 15 metres and provides all or just some of the systems with their requirements depending on learning needs. The training covers differential pressures and how to deal with them, what effects control valves have on velocity noise and flow rates and how to lock valves and change flow. Glenn Schofield, Technical Training


he leading manufacturer of Integrated Piping Systems, Pegler, has


Support Manager, commented: “This is a really immersive room that engages most senses. Visitors can see just what happens to flow rates and pressures thanks to the visual display units which monitor each valve, they can get hands on and change


pressures according to requirements and see how a ¼ inch turn can effect pressures, they can also hear velocity noise and alter valves accordingly.


“Commissioning and balancing systems is about knowing the system, understanding its requirements and adjusting to suit. This allows visitors to ‘play’ around getting a feel for flow and pressure rates and working with a system in a controlled environment.”


www.pegleryorkshire.co.uk


Denso™ corrosion prevention for Wessex Water pipe fitting


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Wessex Water pipe­fitting has recently been wrapped with the Winn & Coales DensoTM P1 System. The project in Warminster was to


install a new pipeline to a pumping house, replacing an old existing pipeline which will now be discontinued. The Denso P1 System was selected as a result of


their products meeting the requirements of the CESWI P1 Specification for Water Industry. The corrosion prevention system comprises Denso Paste, Denso Profiling Mastic and Denso Petrolatum Tape.


www.denso.net Smart Plumbing Manifold continues to reap rewards


industry award – this time being named as a finalist in the Offsite Awards 2019 Product Innovation of the Year category. The awards, which will take place in March, celebrate the best in precision building design and delivery. The winners will be outstanding examples of prefabrication and factory­based methods, products, systems and disciplines that increasingly strive to develop a sustainable, streamlined and cost­effective way to deliver a better built environment. REHAU opted to put forward its market leading Smart Plumbing Manifold due to its innovative design and purpose. The new product is a valuable addition to REHAU’s portfolio with the construction


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Dunham­Bush sign exclusive manufacturing and distribution agreement with Eco­Airvent


emitters and chillers, has signed an exclusive agreement with Eco­Airvent Ltd to manufacture and distribute the company’s range of innovative, energy efficient ventilation products, including its patented Classmaster® and VHR heat recovery units. Developed over several years, the new products will offer a proven solution to the requirements of BB 101: (Ventilation, thermal comfort and indoor air quality 2018) and will be available throughout the UK and Southern Ireland through Dunham­Bush’s existing sales network. ‘These cutting edge products


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complement our existing range and will help to improve indoor air quality in school classrooms and colleges in an energy efficient manner by making use of variable


unham­Bush, one of Europe’s leading manufacturers of heat


EHAU’S Smart Plumbing Manifold has once again been shortlisted for an


industry moving towards offsite construction – as the Smart Plumbing Manifold can be installed in a factory and connected onsite swiftly and securely. The Smart Plumbing Manifold is a modular,


compact product offering a solution for control of water distribution, designed for use in utility cupboards where space is at a premium. It’s benefits include being time­ saving for the installer – it only takes a matter of seconds to install – whilst also providing visual checking to ensure it is secure and tight. The Offsite Construction Awards will take place on March 5 at ExCeL London. For more information visit:


www.rehau.uk


heat recovery,’ said Dunham­Bush MD, Mike Holding. The agreement was signed on behalf of Eco­ Airvent by Managing Director, Gary Morgan. Dunham­Bush’s current range includes chillers, LST radiators, radiant panels, fan convectors, door curtains, trench and perimeter heating and fan coil units. For further information contact


Dunham­Bush Ltd, Tel: 023 9247 7700, Email: info@dunham­ bush.co.uk or visit:


www.dunham­bush.co.uk 40 BUILDING SERVICES & ENVIRONMENTAL ENGINEER MARCH 2019


ISO Combi Card offered by Nortech is a card with a long range UHF tag and proximity or smartcard technology. Designed for use with the uPASS range, the card’s features ensure that only one card is required for both vehicle and building access applications. Based on passive UHF technology, the UHF Combi Card by Nedap is


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identified up to 10 metres with the uPASS Target, five metres with the uPASS Reach or two metres with the uPASS Access. The card doesn’t contain a battery making it maintenance free, and typical applications include parking areas in combination with building access at gated communities, universities and offices. The UHF Combi Card combines UHF technology with proximity or


smartcard technology that is used for building access. This combination ensures compatibility and seamless integration with existing access control applications. The UHF Combi Card supports several technologies, these are UHF ­ Mifare, UHF ­ Mifare Desfire, UHF ­ Legic, UHF ­ EM, UHF ­ HID prox and UHF ­ HID iClass. The UHF Combi Card is featured with special security protection to


provide data integrity and prevent copying. The card has a thin, ISO format that can be used with optional plastic holders.


www.nortechcontrol.com Read the latest: www.bsee.co.uk


UHF combi card ensures compatibility and seamless integration with existing access control applications


sed for people and vehicle access, the UHF


Rinnai with LPG is low NOx: sustainable and perfect for off­grid


emission figures, greater energy efficiencies and are more economic to run than other sources such as oil or electric ­ making them the first choice for off­grid installations and sites. For specifiers and installers, helping an off­grid user select a low NOx energy efficient water heater is critical — and a condensing continuous flow water heater using LPG is one of the most efficient and environmentally friendly options available. By choosing a continuous flow water heater instead of a standard electric water heater, an end user can reduce energy costs by up to 50% and reduce greenhouse gas emissions by up to 61%. When compared with oil­fired systems this saving is even greater. Tests show that a Rinnai Infinity


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condensing water heater emits 35.18mg/kwh NOx compared with a typical oil boiler that emits approximately 364 mg/kwh NOx. That means a Rinnai condensing water heater emits approximately 10% of the NOx that an oil boiler emits, a 90% reduction. Therefore, combining a gas boiler and a Rinnai water heater will radically reduce NOx. On the 26th September 2018, the EU introduced new stricter parameters for NOx emissions in the gas water heater category. The new NOx level was set at 56mg/kwh. Rinnai water heaters are well in advance of the criteria demonstrating product quality


innai condensing hot water heater units using LPG deliver lower carbon


and superior performance. The new criteria for oil fired


boilers or liquid fuels has been set at 120mg/kwh, highlighting that current appliances and the oil­ fired market has some way to go before it can achieve a similar level to that of gas. If we compare the production


of CO₂ between gas and electricity we find that for every GJ (277.78kW) of energy used gas will produce 44.44kg compared to 103kg with electric. We can see that for the same energy used electricity will produce twice the amount of one of the major greenhouse gases. The efficiency of this type of


electrical generation is as low as 40%. So, if we now compare the use of electricity to LPG to heat hot water we find that electricity is 40% efficient in comparison to a Rinnai water heater which returns 107% nett efficiency. Electricity is not the ‘green’ fuel


that its marketing portrays it to be. It produces more CO₂ than LPG but is also less efficient, by far.


An LPG continuous flow water


heater is an ‘on­demand’ system. When a hot­water tap is opened, the unit reads the demand and starts the heating process. The water flows through a heat exchanger, where it heats to the desired temperature using only as much gas as is needed. When the tap is turned off, the heater automatically shuts off. For more details on RINNAI


products visit: www.rinnaiuk.com


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