Hoval boilers achieve the maximum BREEAM rating

Published:  28 January, 2008

Hoval
Three BREEAM points for NOx emissions — Hoval UltraGas condensing boilers.

Extensive, indepedent testing of Hoval UltraGas boilers has confirmed that their average NOx emissions are less than 40 mg/kWh. This means that these boilers, across the full range of outputs from 15 to 1440 kW, achieve the full maximum BREEAM rating of three points for NOx emissions.

These tests were carried out to DIN EN 676 by GasWarme Institut across a range of outputs and supersede earlier tests carried out at high fire, which did not represent average emissions during use.

When tested to the requirements of the European Boiler Efficiency Directive, net efficiencies of up to 109.5% are achieved, with carbon-monoxide emissions of 10 mg/kWh. Such high efficiencies are achieved using a modulating pre-mix down-firing burner with up to 5:1 turndown — 12:1 on twin units — and a stainless-steel combustion chamber with a single-pass aluFer tube heat exchanger. The aluFer tubes are also of stainless steel (in contact with the boiler waterside) with an alloy-alloy fined internal surface to provide a high surface area for heat transfer.

For more information on this story, click here:Jan 08, 105

comments powered by Disqus

Search

Welcome

Welcome to Modern Building Services Online, the web edition of Modern Building Services (MBS) journal and the UK's most popular Building Services engineering site. Modern Building Services covers the entire Building Services Engineering industry. This site contains archived content from the journal, plus web-specific content.

When you go to our digital edition, you can also access the archive of digital editions.
November 2017: DIGITAL EDITION
ARCHIVE OF DIGITAL EDITIONS

Modern Building services has a group
on Linkedin - join us!

Show

Jobs

  • Intermediate / Senior Mechanical Engineer

    The Mechanical team undertake the design and specification of a range of Mechanical building services in a lead or supporting role, depending on project complexity and scale. You should demonstrate a flexible approach to design and team working and wil......

  • Senior Urban Designer

     Applicants will be Master’s Degree qualified Architects / Urban Designers, with a strong portfolio of work highlighting a variety of projects at a range of scales and types, with strong focus on regeneration, infrastructure-led projects and major develo......

  • Principal Structural Engineer

    We are currently recruiting on behalf of a global client, with a diverse range of award winning projects to their name. Their experience spans a host of market sectors, including transport, infrastructure, defence, scientific, education, high-tech and ......

more jobs »

Poll

"Is the Building Services industry lagging behind in the implementation of BIM?"