Rapid Remeha offsite heating solution ticks all boxes at school

By: Remeha
 
 
The off-site cascade arrangement for the Gas 220 Ace boilers with PHE at QEH
The off-site cascade arrangement for the Gas 220 Ace boilers with PHE at QEH
 
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* #OffsiteSolutions

Industry:
* Education

Location:
* Wokingham - Berkshire - England

WOKINGHAM, England - June 18, 2019 - PRLog -- Queen Elizabeth's Hospital (QEH) School in Bristol, has successfully improved the reliability and efficiency of its heating provision with the installation of five Remeha Gas 220 Ace floor-standing condensing boilers on a space and time-saving, off-site fabricated cascade system.

One of the country's leading independent schools, QEH is also one of its oldest, having existed since 1590. Its current home is a magnificent Grade II-listed building in Clifton that dates back to 1847. When the two ancient cast-iron sectional boilers serving the main building came to the end of their serviceable life, QEH were keen to act fast to replace the dated boiler plant during the summer shutdown period.

Replacing ageing or inefficient boilers with high efficiency condensing boilers is one of the most cost-effective solutions to achieving significant energy, cost and emission savings. And as it can be carried out without adversely affecting the existing fabric, it is a particularly effective approach to improve energy performance in listed buildings like QEH, where consent is required for any major improvements.

Consultant Geoff Beaven, previously of the Brodie Partnership, specified installing five Remeha Gas 220 Ace boilers with a Plate Heat Exchanger (PHE) on an off-site fabricated cascade system to meet the heat output demand in an exceptionally compact footprint.

"The nature of the listed school building meant that floor-standing boilers were required to meet the high 1,250kW heat demand," explained Geoff Beaven. "But we were also working to a tight schedule, as the whole project needed to be completed within the fixed summer holiday period. We selected the Gas 220 Ace boilers for their high efficiencies and reliability, and also for the Remeha off-site fabricated cascade options that would enable a faster, smoother installation."

A key advantage of using off-site fabrication heating techniques is that the unique requirements of the project and the site can be addressed and overcome at the outset.

Working with Geoff Beaven and project contractors Hewer FM, Remeha prepared 3D drawings of the boiler cascade arrangement to the specified layout and integrated a PHE into the design.

PHEs are increasingly applied to refurbishment projects to achieve hydraulic separation between the boiler circuit and the heating circuit, and so optimise boiler performance and longevity.

The detailed drawings provided all stakeholders with early visualisation of the layout. Only once the design is clearly identified does production take place in a factory environment, with end-of-line testing providing added quality assurance.

Once the equipment was delivered to site, Hewer FM bolted together the boilers and connected them to the existing system. John Cowdery at Hewer FM said: "The off-site cascade was a good solution. Space was tight in the plant room, but as the cascade had been designed specifically for this project, it fitted in well and connected together very easily."

Geoff Beaven added: "The off-site cascade arrangement with PHE worked brilliantly. It was just what we needed, meeting all the project requirements and ensuring a speedy installation."

Installing multiple advanced condensing boilers in a cascade arrangement is a highly effective means of meeting a building's heat demand – resulting in greater efficiency, improved reliability and more straightforward future maintenance.

At QEH, the new Remeha boilers have been serving the whole of the main building, as well as eight science labs, additional classroom blocks and the music and art buildings since the autumn. In that time, not only have comfort levels risen within the five floors of the school building, but initial data is already pointing to significant gas savings due to the higher efficiencies of the fully modulating plant.

On projects like this, using bespoke-designed, off-site fabricated equipment can bring advantages for the entire supply chain. QEH, for one, is benefitting from more efficient, more reliable heating – and lower heating costs – following minimal disruption. The Consultant has a flexible solution to meet all specification and customer requirements. And the Contractor benefits from reduced on-site time and high-quality installations, for happy customers.

Available in a wide range of outputs, the fully-modulating Gas 220 Ace series delivers higher-than-average gross efficiencies of up to 98% with ultra-low NOx emissions. It is supplied with onboard time and temperature controls, with direct connection to a Building Management System provided as standard to maximise heating efficiency.

-ENDS-

remeha.co.uk – T: 0118 978 3434 – E: info@remeha.co.uk

About Remeha (http://www.remeha.co.uk)

Remeha has been reliably engineering high-performance and high efficiency heating solutions since 1935, providing the most energy-efficient, sustainable and economical heating solution for every commercial requirement. At the heart of its comprehensive product portfolio is the class-leading, fully modulating, low NOx Remeha condensing boiler range. Built around a single design concept, these boilers can be combined with Remeha's complementary high-performance renewable and low carbon heating solutions to create the low carbon plant room. This includes its combined heat and power (CHP) range spanning 5.5kWe to 50kWe and HIUs.

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Tags:#OffsiteSolutions
Industry:Education
Location:Wokingham - Berkshire - England
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