Heating Industrial & commercial
built environment. However, some believe the approach financial costs of consumption,’ he says.
to selecting heat emitters hasn’t always kept pace. James Parkinson, brand marketing manager at boiler
Says David Shuttleworth, technical director of
It’s important
maker Vaillant, agrees that customers are benefitting
Dunham-Bush, a supplier of fan convectors and that the heating from huge energy efficiency improvements to heating
perimeter and radiant heating: ‘This is an area that needs
system is
technology – but not as much as they should be.
to be addressed, both by the manufacturer ensuring that For Parkinson, many of the benefits from using
suitable heat emitters are available, and by the specifier
sufficiently
improved technologies are lost through poor control
recognising the need to address this issue. responsive strategies, and a failure to understand how the whole
‘For example, the move to condensing boilers favours
to match the
heating system works in relation to the building fabric
lower water temperatures than traditional boilers if and other services.
maximum condensing is to be achieved. Similarly,
heat loss and
He adds: ‘The industry now has access to highly
many more projects are now using heat pumps, again accommodate sophisticated controls, such as weather compensation,
with lower flow and return temperatures, to improve
any internal heat
that can keep condensing boilers in condensing
their efficiency in cold weather. mode for most of their operating life. Hopefully,
‘In parallel, better insulated buildings reduce heat
gains, with as
the requirement in the new Part L of the Building
losses, while the thermal mass of the building fabric little overshoot Regulations for commissioning strategies to be
has remained almost constant, leading to protracted
or undershoot
submitted as part of the initial design will begin to see
warm-up periods at full load. Once the spaces have such solutions specified as a matter of course.’
reached the design temperature, it’s important that the
as possible
Yan Evans, technical director of Andrews Water
heating system is sufficiently responsive to match the – David Heaters and Potterton Commercial Boilers, part of Baxi
heat loss and accommodate any internal heat gains,
Shuttleworth
Commercial Division, believes that the single biggest
with as little overshoot or undershoot as possible, thus challenge facing the industrial/commercial heating
conserving energy.’ sector in the coming five years is the introduction
This implies the need for tight control of the heating of the Eco-Design of Energy Using Products (EuP)
system, an area that also concerns Mark Northcott, Directive.
commercial sales director at Remeha: ‘The better the This legislation, which is likely to be introduced in
control, the greater the energy efficiency, the higher 2010, will impose stringent energy efficiency levels
the fuel savings, and the lower the environmental and for space heating and hot water generation systems, >
www.cibsejournal.com October 2009 CIBSE Journal 49
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