CASE STUDY: High-Efficiency Heating for National Library of Wales


Remeha Gas 310 and 610 Eco Pro high-efficiency condensing boilers have been installed into two boiler plant rooms at the National Library of Wales in


Aberystwyth to deliver the effective, high-performance space heating required by Wales’s primary research library and archive.


For some buildings, maintaining reliable, consistent temperature heating is not just desirable, it is an essential requirement. The National Library of Wales is a case in point. This imposing building houses over 6.5 million books and periodicals in addition to an impressive collection of archives, portraits, maps and photographic images. It is also home to the Welsh national collection of manuscripts, paintings and topographical prints. The effectiveness of the heating plant is therefore key to achieving the highest environmental and conservation standards needed to protect and conserve its valuable archives.


When the time came to replace the existing, failing boilers, the Library was keen to maximise the opportunity to improve its carbon footprint and reduce energy bills with a high- efficiency heating system. Its primary concern was to improve the reliability and resilience of the heat generation plant, particularly in the book stack boiler room, which serves the critical cells where the Library’s priceless collections and artefacts are stored.


Contractors Aber Heating Engineers recommended installing three Remeha Gas 310-500 Eco Pro boilers into the main boiler room serving the offices and administrative services department in the oldest part of the building, and three Remeha Gas 610-1000 Eco Pro boilers into the


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NOx emissions as low as 26mg/ kWh. As a result, the energy and carbon savings from a boiler upgrade can be considerable: the Carbon Trust puts the figure at around 30%, although this figure can rise still higher depending on the boilers being replaced.


book stack boiler room to achieve the closely-controlled conditions required by the Library. With two Remeha Gas 210 Eco Pro 6-section boilers already installed by Aber Heating into the third Library plant room three years ago, the National Library of Wales is now heated entirely by Remeha boilers.


“The National Library of Wales houses


over 6.5 million books and periodicals”


Mark Sandford of Aber Heating commented: “Our experience of Remeha boilers and the service they provide has earned them a good reputation with us over the years. The Library is also impressed with the quality of the brand as the boilers serving the third building have operated reliably and efficiently from the outset.”


Condensing technology is a popular retrofit solution as it offers the highest efficiencies achievable from boilers whilst minimising greenhouse gas emissions. The Remeha Gas 310/610 Eco Pro range offers gross efficiencies in the region of 96% at 50/30°C and


The installation was carried out with minimal disturbance and no interruption to heating service, assisted by the smaller footprint of the Remeha boilers, which were delivered on wheels for easier manoeuvrability into the plant room. With the addition of new pipework, new flues and upgraded controls, the refurbished heating system at the National Library of Wales effectively ensures a comfortable temperature for visitors and staff and a closely- controlled environment for its prized collections, whilst helping the Library meet its environmental targets and benefit from lower energy costs.


David Michael, Director of Corporate Services at the National Library of Wales, said: "We are very pleased with the solution that Aber Heating implemented, and the efficient way in which it was done with minimal disruption to our day-to-day operations and with no impact on the thousands of visitors who come to our site. The new Remeha boilers are a major step forward in improving the resilience of our systems as well as delivering a step change in our environmental performance."


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