Advertorial RIELLO CELEBRATES A CENTURY OF INNOVATION A


s Riello celebrates a century of innovation and engineering excellence in heating solutions, Neil Mattock, Marketing Director and Head of Training at Vokèra by Riello, looks at some of the highlights of the company’s 100-year history and recent developments in response to


the current energy transition. Founded in 1922, Riello, the parent brand of Vokèra by Riello, is marking an important


milestone this year. A pioneer in combustion technology, the Riello Group has grown over the past ten decades to become a leader in products and services for heating, air-conditioning and energy efficiency. The company’s strength is the result of the technological innovations, skills and experience it has acquired over its long history. Today, innovation and sustainability continue to guide Riello in the way it operates and in the creation of cutting-edge systems. This philosophy is reflected in the infinite circles of the 100 years logo – a symbol of continuous research aimed at excellence of efficient, safe and sustainable solutions.


Historical highlights


Riello was established in Italy after the end of the First World War and produced the first light oil burner in 1923. Two years later, the company achieved an important innovation by adapting burners to the new heavy oil fuel. During the 1950s and 60s Riello introduced other products such as air conditioning appliances and, as sales increased, the business went on to become a joint- stock company in 1973. The 1980s were years of great expansion and saw Riello’s portfolio of heating and cooling systems grow to around 140 product families. In 1998, the famous Riello Burners brand was born, and in 2005 over 500,000 burners were manufactured and sold in just one year. The 2000s marked Riello’s entry into the world of renewable energy. Developments in this field have continued apace and the company has launched ambitious projects to develop a range of burners (and condensing boilers combined with burners) that will operate efficiently and safely with green hydrogen and can be integrated with IoT systems for remote control of comfort and energy consumption. In 2020 Riello became part of Carrier Global Corporation, a


leading provider of innovative HVAC, refrigeration, fire, security and building automation technologies, heralding the start of an exciting new future for the company.


Focusing on the future In 2022 Riello continues to innovate with smart and sustainable solutions and the company’s expertise is now firmly focused on the future with the decarbonisation of heating. Recent innovations include the Condexa PRO – a high performance wall-hung condensing modular system offering a world of configurations that can be built from a single model; and Steel PRO Power – a modular floor standing gas condensing system, conceived and


https://www.riello.com/about-us-100-centenary S


Stainless steel press-fit available in XL sizes up to Dn150


mith Brothers exclusive M-profile stainless steel press-fit system can be pressed in XL sizes 5” (139.7mm) and 6” (168.3mm) for both water & gas, eliminating the need to weld down to 4” (108mm).


The availability of Isotubi’s XL tube and fittings is proving to be advantageous for gas and water installation projects, enabling a quick and simple jointing process which can be utilised with larger diameters down to its smallest size, 1/2” (15mm). The complete range is manufactured in ISO 9001 conditions, is BSi and WRAS approved (including XL sizes) and meets EN10217-7 and EN10312 standards. A study commissioned by Viega and BSRIA designed to compare traditional pipework jointing methods against press systems was carried out under controlled conditions in the BSRIA laboratory. The study compared 4 different jointing methods: threading, grooving, welding and press-fit connections for thick-walled steel tubes, ranging in sizes from 1/2″ to 4″ diameters. The study focuses on Viega’s Megapress System and highlights that the press-fit method took considerably less time to assemble. The study suggests that due to its lighter weight and decreased handling, installation times and costs can be significantly reduced. The full report can be found at: www.viega.co.uk


For more Isotubi information Visit www.sbsonline.net/isotubi1 to view the full Isotubi range, as well as useful product information such as Luckins links, product videos and technical information sheets. SBS Regional Product Specialists offer free Isotubi installer competency training, which upon completion activates your 25-year warranty. To learn more visit our website.


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Heat Pumps – The Cost Of Reducing Emissions By Greg Brushett, UK sales manager


ith the government strongly advocating the use of heat pumps as a method of delivering net zero targets for commercial properties, we have noticed the trend for broad statements implying that while cutting


emissions, heat pumps also reduce the energy costs for a building. It’s just not that simple. We strongly support the advantages of heat pumps as part of an all-electric or


hybrid domestic hot water (DHW) system to achieve carbon savings. With DHW equating to as much as 20% of the total energy demand for domestic buildings and anywhere from 10-70% for commercial properties, it is important to clarify how heat pumps are being employed in a building’s system. With a gas-fired system, you can achieve a safe DHW storage temperature without a significant


impact on the overall efficiency but with a heat pump you need to either force the compressor to work very hard, which will reduce the Coefficient of Performance (COP) or, in a lot of cases, use the heat pump to partially heat the hot water and then use an immersion heater – which has a COP of just 1.0 and therefore higher energy costs – to do the remaining work. If you are willing to accept this extra cost, working flow temperatures of 50- 55°C from the heat pump to an electric or hybrid DHW system are more than achievable year round in the UK, and emissions will be dramatically reduced. However, broad statements such as “heat pumps reduce costs” or “gas boilers remain more economic to run than heat pumps” are inherently misleading. A heat pump can supply a properly insulated building’s heating system completely, and if designed


well enough, can achieve a COP of 3.0, or slightly more, giving a similar yearly cost (within 10%) to that of a gas-fired heating system This would also be more attainable with the recent change in gas and electricity prices. The same is not true of a hot water system. Following initial modelling and analysing reports from


live systems a hot water hybrid system that achieves 50°C with an overall COP of 2.76 and uses an immersion heater to top up to 60°C has an overall efficiency of 2.4 based on the weighted average. Using these results, running costs of the system are seen to be significantly higher than a gas system. However, the argument does demonstrate that incorporating heat pumps into an electric-only DHW system shows considerable savings over a COP of 1.0. Partnering this with other technologies such as solar thermal will only increases the benefits.


Benefits or efficiency? Making the right choice between heat pump or gas depends on what an organisation is intending – whether seeking active emission reduction now, or, if already on gas, securing cost saving operation until sustainable technology further matures, and costs fall. Heat pumps can give incredible carbon emission savings for existing buildings, but as a way to


reduce energy costs, replacing a gas-fired boiler/water heater with a heat pump doesn’t always add up. Commercial properties have unique demands, especially for DHW, making better application design and installation all the more important when it comes to specifying the right technology.


www.sbs.co.uk/sbs-training 32 BUILDING SERVICES & ENVIRONMENTAL ENGINEER AUGUST 2022 www.adveco.co Read the latest at: www.bsee.co.uk


developed with the aim of maximising flexibility and simplicity of installation.


A range of fully


modulating condensing boilers, Condexa PRO


offers versatile standalone and cascading solutions to meet a wide variety of commercial building demands. The flexible nature of the Condexa PRO means it can easily integrate with renewable solutions to maximise energy savings. The Steel PRO Power range can be installed in single or cascade configuration. Compactness, versatility and advanced electronic management, combined with a new patented double-acting stainless steel heat exchanger and pre-mix burner with wide modulation range, make Steel PRO Power an extremely efficient and low pollutant system. In addition to innovative commercial boiler systems, Riello also offers the HIU Pro range of Heat


Interface Units as an integral part of a full-plant offering. Available in direct and indirect versions they are suitable for a range of applications including apartments, houses and centralised heating systems. Riello’s development of combustion technology changed the way industries produce heat and hot water. A century since it started, the company has built a reputation for solutions that maximise the comfort of those who use them and are easy to use and maintain. And in the journey towards energy transition, Riello continues to be a pioneering force, developing sustainable systems that use alternative energy sources for the well-being of current and future generations. For more information visit our website.


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