Commercial boiler supplement


for success over the past two years has been on making Ideal Commercial Boilers’ extensive technical expertise easily available to our customers whenever they need it, a service that had been enhanced by our recently expanded sales and market- ing team. Our ability to offer a fully con- sultative service, providing not just specif- ic product knowledge but also advanced technical advice on specifying and inte- grating these products within entire systems, has been one of the keys to our success. In addition to challenging market conditions, boiler manufacturers are also preparing for the second stage of the ErP Directive in 2015 which will mean any boiler <400kW that is not condensing will fail to meet the minimum energy efficien- cies required. Those boiler manufacturers who are ahead of the game will already be installing a wide range of eligible products that can be offered as replacements. Another key industry development is the growth of BIM (Building Information Modelling), which will be mandatory on all public projects by the end of 2016. Ideal Commercial Boilers’ online BIM library includes downloadable data-rich compo- nents for all our condensing ranges, con- taining information such as outputs, effi- ciencies, clearance zones, pipe kit options, flueing options and NOx emissions. As always, innovation, expertise and strong customer service will ensure leading manufacturers remain ahead of the game whatever the challenges, as well as putting them in a strong position for future growth.


MHG managing director Graham Rodd, – The boiler industry has been very effective in design- ing and launching higher efficiency boilers. One of the challenges that we face now is to ensure that that


inherent efficiency is exploited effectively through equally efficient control. For example, weather compensation helps to extend the times when return water temperatures are sufficiently low to achieve good condensing. It therefore makes sense if weather compensation is included as standard with the boiler, rather than being an added extra that might get ‘value-engineered’ out by the time the project is installed.


Also linked to the need for control is enabling the boiler plant to adapt efficient- ly to changing heat loads, something that has become increasingly important as the thermal performance of buildings has improved. This is one of the reasons that has led to the recent growth in cascade boiler installations. Again, however, it is essential that these are controlled effec-


tively – the controls really need to “talk the boilers’ language”. At the same time, we need to try to facil- itate installation as part of the overall drive to “reduce the cost of construction”. To that end, supplying cascade boiler systems with matched frames, hydraulic kits, flues and controls kits should be a standard. One of the challenges that faces the


country as a whole is a need to signifi- cantly improve the energy performance of our existing building stock Retrofit boilers clearly have a role to play in this. We have been involved in many retrofit boiler proj- ects over the last couple of years and one recurring issue is the condition of the existing heat distribution system. In partic- ular, the potential for contaminated system water in the pipework to damage the boil- er. We have addressed this by introducing internal plate heat exchangers that act as boiler separation plates and keep the two systems separate while taking advantage of the higher efficiency of the new boiler - a development that has proved very useful in a wide range of different applications.


Remeha Commercial managing director Mark Northcott – The building serv- ices industry in general is facing huge challenges from the UK and EU with steep envi- ronmental targets in place requiring


higher efficiencies and lower carbon emis- sions from heating to help us save energy, lower fuel bills and protect our energy security. On the face of it, we already have the technology to achieve these goals. Where boilers are concerned, many manufacturers already quote boiler effi- ciencies that meet the higher standards ahead of their implementation. However, quoted efficiencies and actual perform- ance are often two very different things as building performance reports reveal. For Remeha Commercial this year has brought a difficult market but one in which we have prospered, a fact we attribute to our straightforward, honest approach to technology. Product-wise we have contin- ued to innovate, expanding our unique range of sustainable systems and sup- porting consultants and specifiers in using our products in smarter system designs. We continue to challenge actual efficien- cies to close the performance gap. This has resulted in new bespoke and prefabri- cated heating systems that combine con- densing technology and LZC or PFGHR technologies in quality-assured, controlled solutions that can be tailored to meet a building’s individual needs to maximise heating efficiencies.


The market might be depressed, but the challenges cannot be ignored. High on the list is the need to improve the energy efficiency of our existing buildings, which is where we see high-efficiency, low-NOx condensing boilers playing an important


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role. Retrofitting a modern condensing boiler is often the cost-effective, rapid solution to energy and carbon savings. But why stop there? We need to go the next step, encouraging a rethink in budgets to include an allocation for control upgrades, terminal unit replacement, passive energy saving technologies such as flue gas heat recovery, and complementary LZCTs to maximise the building’s saving potential. Equally important is the need for a thor- ough understanding of the new technolo- gies and a joined-up thinking throughout the industry for more informed specifica- tion, smarter design, good installation and control and, last but not least, a protected budget for commissioning. The future has to be good: the need to meet our stringent environmental targets and, ultimately, to save energy to protect our future is, after all, our business. In terms of heating solutions, the new low carbon boiler house of the future will inte- grate condensing technology with multiple equipment choices such as LZC and PFGHR bolt-ons using specially-config- ured controls. With BIM the standard, the hope is that the project team will collabo- rate more closely and the industry will learn from the mistakes of today to design more sustainably for the future.


Stokvis Energy Systems marketing director Paul Sands Lurking in the bow- els of most com- mercial buildings is the plant room, where the build- ing’s services are concentrated and dominating this room is usually the boiler, burning fossil fuels to provide hot water and space heating. That’s the con- ventional pattern. But things are changing in the world of commercial boilers. Recent years have seen a rapid change in attitudes to energy use in buildings. Global warming and the rising cost of fos- sil fuels have combined to demand greater energy efficiency and in the past 10 years there has been a greater concentration on better thermal insulation and lower energy loadings. The result is today’s generation of compact, fully-modulated boilers with low water content and sophisticated controls. Because less heat energy is wasted in modern buildings, the boilers required to service them can be smaller and with a lower output. Another consequence of the drive to combat global warming is the rapid development of renewable energy sources, such as Biomass and Biodiesel Boilers, Solar Thermal Systems and heat pumps. These are now taking the lead as the pri- mary heat-source in new buildings. Gas Fired boilers are still required, but they often take a secondary role, supplementing the renewable heat sources or as back-up. Manufacturers are responding to changing demands by producing smaller, more compact boiler packages incorporat-


ing pipework, manifolds, headers, controls etc, in a pre-assembled module for quick and easy installation. The drive to save energy, improve effi- ciency and utilise renewable energy con- tinues to dictate the development of the industry. In the housing market the empha- sis is to incorporate renewable energy at a District Heating Boiler House to serve multi-occupancy domestic developments A central boiler house producing heat for circulation to possibly hundreds of proper- ties, where renewable energy can easily be incorporated is more efficient than equip- ping each property with its own boiler. Each dwelling can extract the heat and hot water service from an interface unit incorporating plate heat exchangers and controls.


Veissmann managing director Graham Russell –The commercial and renewable sectors both suffered in 2013,


predomi-


nantly from the lack of local authority expenditure and particularly in com-


mercial gas and oil boiler sales. Positively in 2014, the commercial RHI continues to gain momentum. We’ve seen this to be the case with biomass especial- ly, as we’re involved in installations from large country estates to innovative new ventures such as an indoor strawberry farm, where pipes warm the soil in the winter growing season, giving us British strawberries all year round. In direct response to the market, com- mercial CHP is a focus for us this year and we have won contracts for a number of large scale industrial projects and district heating networks, where CHP is also being used in conjunction with our commercial boilers and our full range of renewables. Specifiers are approaching Viessmann as a provider of all technologies and controls for a full system design approach. Our com- prehensive range covering all technologies for all fuels and applications allows us to design system solutions suited perfectly to achieving our customers’ aims. It is testament to how confident we are


of Viessmann’s future product line up that we are choosing, in this our 25th year in the UK, to focus more on our next 25 years in the UK. There is a lot to be excited about when it comes to heating innovation. This feels like a key moment for our industry, both in terms of the Renewable Heat Incentive and a genuine air of open-mind- edness to new ways of generating energy for our homes and businesses. We’ll be at the forefront of the transition from boilers, to hybrids, to heat pumps, to mCHP and to fuel cells. When we celebrate our birthday in September, I’ll be proud to show examples of our Vitocal 242-S split air source heat pump, a bivalent heat pump/boiler combination, our innovative gas adsorption heat pump and the ground breaking Vitovalor 300-P domestic fuel cell.


A supplement to HVR | September 2014 | 3


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