Cast-iron boilers perform to modern standards

Published:  15 October, 2005

boilers
Cast-iron boilers meet modern standards — Hamworthy’s Purewell VariHeat range.

Hamworthy Heating’s Purewell VariHeat range of boilers has been designed as a direct replacement for traditional cast-iron atmospheric boilers. These boilers occupy the same space as their predecessors, but have 50% higher output, exceptional seasonal efficiency and exceed the Building Regulations coming into effect in April 2006.

These cast-iron condensing boilers have fully modulating pre-mix gas-fired burners.

The cast-iron heat exchanger has a down-firing pre-mix burner. A secondary heat exchanger at the base of the boiler maximises heat recovery from flue gases.

Efficiency at full load is 104% net, rising to 108% at part load.

Five models provide outputs from 70 to 180 kW.

VariHeat boilers can be installed individually or in a multiple installation with up to six boilers on a single flue header.



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.
September 2018: DIGITAL EDITION

ARCHIVE OF DIGITAL EDITIONS

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

BESA conference 2018

Show

Jobs

  • Senior Building Services Engineer

      Invitations are invited from experienced Building Services Engineers to assist in the development of a new division within an established professional practice. The projects will be predominantly with Defence-related and Government establishments but w......

  • Building Energy Management Systems (BEMS) Engineer

      Consistently rated amongst the world's best universities, Imperial College London is a science-based institution with a reputation for excellence in teaching and research. Imperial has one of the largest and most diverse university estate portfolios in......

  • Engineering Technical Assistant

      Consistently rated amongst the world's best universities, Imperial College London is a science-based institution with a reputation for excellence in teaching and research. Imperial has one of the largest and most diverse university estate portfolios in......

more jobs »

Poll

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



Calendar