HVAC GAS IS BACK IN FASHION
Improved energy efficiency is key to moving the UK towards a more sustainable future. While our long-term goal is to decarbonise heating, for financial, environmental and practical reasons, our priority right now is to avoid wasting our existing energy source. The spotlight is back on gas as a cost-effective, cleaner fuel source for heating. James Porter, National Sales Manager at Remeha Commercial discusses.
Once the Cinderella of energy policies, this is the year of energy efficiency with the introduction of two new regulations encouraging us to use energy more effectively and intelligently. September’s Energy- related Products (ErP) Directive (EU Directive 2009/125/EC) for heating and hot water products and December’s Energy Savings Opportunity Scheme (ESOS) promote higher standardised efficiencies and practical, affordable measures designed to help businesses meet their environmental commitments and benefit from energy and cost savings.
While the focus is often on new build development, the real challenge for the UK is our high proportion of inefficient existing buildings. Around half of the total energy use of these buildings – and their related GHG emissions – is from heat and hot water generation. If we are to come anywhere near meeting our steep environmental targets, we must improve the heating efficiency of our existing building stock. Gas has always been the most popular source of energy for heating in the UK, accounting for around 80% of domestic, commercial and industrial heating. High on the list of affordable retrofit measures are gas-driven condensing boilers.
Today’s high efficiency, low NOx gas condensing boilers tick both environmental and financial boxes as a cleaner, greener solution to heating with relatively low initial investment and rapid financial payback. Replacing any inefficient boilers with modern gas condensing boilers is widely acknowledged to be the most affordable, effective means of achieving immediate and significant energy and carbon savings.
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Affordable: Condensing boilers are a cost-effective, replicable option, offering rapid return on investment and the prospect of future savings.
Practical: Retrofitting a condensing boiler is often the only possible option for raising the thermal efficiency of our older buildings. Replacing an inefficient 15-year-old atmospheric boiler operating at just 50% efficiency with a modern, 98% efficient condensing boiler is proven to reduce energy bills by as much as half.
Highly efficient: Condensing technology offers the highest thermal efficiencies as recognised by the ErP which will essentially make it mandatory to install high-efficiency condensing boilers below 400kW on both new build developments and refurbishment projects.
Clean: Today’s clean-burning, fully-modulating, condensing boilers provide a greener solution to heating with minimal NOx and carbon emissions, for a good working environment with cleaner air, reduced allergies and respiratory conditions and improved health and well-being.
Tried and trusted: There is no shortage of skills or knowledge when it comes to fitting high performance condensing boilers that are reliable, easy to install and to maintain.
Flexible: Modern boilers are designed for greater flexibility. Installation is easier with lighter, more compact boilers supplied on wheels for greater manoeuvrability or able to be disassembled where access is restricted. Multiple boiler installations on cascade systems facilitate wider output modulation to
maximise energy and carbon savings while bespoke rig systems can be tailored to accommodate the plant room for improved quality control and minimised downtime and labour costs.
Versatile: The versatility of condensing boilers means that they can transform the performance of a building in retrofit applications or, equally, operate alongside renewable energy products such as gas absorption heat pumps, biomass boilers or CHP units, to supply seasonal top up or meet peak demand for low carbon heating.
Full-time condensing boilers: Full- time condensing boilers use heat recovery technology to recover otherwise wasted energy which they pass back into the system, thereby enabling even more efficient and effective use of the energy input. This ability to achieve full time maximum combustion efficiency, even at high flow and return temperatures, makes them the perfect solution to raising the efficiency of older buildings that take more energy to heat.
This year’s renewed drive to raise energy efficiency levels acknowledges the importance of gas as a source for heating by enforcing more effective and sparing use of the fuel for improved energy security, lower greenhouse gas emissions and significant energy and cost savings. For organisations juggling environmental commitments with profitability, gas condensing boilers are the practical, highly efficient, reliable and flexible solution to raising energy efficiency that has helped put gas firmly back in fashion.
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