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SPN APR 2011 HeatPumps


www.swimmingpoolnews.co.uk


Heat pumps for swimming pools are accepted now as efficient, reliable and energy saving but with no industry standard available, selecting the correct model and application is essential


T


he really good thing about today’s heat pumps is that they have been around long enough to


have evolved into hugely efficient machines that make the absolute most of energy supplied through the earth’s elements.


Producing hot water for the majority of domestic and commercial applications was traditionally achieved via the burning of fossil fuels which in today’s energy aware times is an obvious negative. It is a fact that even the most efficient boiler is


subject to a high level of CO2 emissions. Conversely heat pumps


reduce both CO2 and energy consumption.


Air source heat pumps have successfully been installed for many


years, especially for providing efficient pool water heating. This equipment absorbs energy from the external air rather than from the earth’s strata; therefore eliminating the need for heat collector pipe- work, and reducing the cost of installation.


Ground source heat pumps utilise heat collector pipework which absorbs energy from beneath ground level. Heat collector pipework is buried within the earth’s strata; either horizontally in relatively shallow excavations or vertically within circular bore holes.


Heatstar’s


HEATSTAR EVOLUTION Paul Scott, Technical Director of Heatstar, offers an insight into the rapid and significant changes which this market sector continues to


Aquarius heat pumps


are a self contained pool water heating system for commercial pools


The Solar Bear aerothermal heat pump for domestic swimming pools from Heastar


witness. Paul has specialised in the design, manufacture and application of swimming pool heat pumps for over 20 years. “The concept of the heat pump is nothing new. However, their application as a heating method for swimming pools is a far more recent development, pioneered by Heatstar’s Tony Andrews and Calorex’s Bob Buck in the 1970’s. “Heat pump models are available in different kW duties and the correct output capacity must be mated to a particular size of swimming pool. There are also different models of heat pump available depending on the required swimming season, most commonly for summer use.


“The current market is


particularly interesting. Coupled to the potential for increased demand through end clients wishing to optimise their own energy efficiency and reduce environmental impact. “Anyone who has visited one of the European pool exhibitions over the last few years would have noticed the proliferation of heat pumps on offer, many of which are now originating from the Far East and particularly China.


“Many of these low budget brands are being imported and distributed in the UK and quite a few companies are looking to benefit from a combination of price advantage and apparent good specification. “Correct application and model selection is crucial and it is important to appreciate that there


By Karen Witney


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