44-45 POOL HEATERS:SPN Master pages 11/3/09 22:58 Page 3
spnfeature
“EUROPE’S HEAT PUMP PRODUCT MARKET IS NOW
THOUGHT TO BE IN THE BIGGEST PERIOD OF CHANGE
EVER WITH PRICES LIKELY TO BE DRIVEN DOWN AS THE
CHOICES OPEN UP FOR POOL OWNERS. WITH THE
CRITERIA FOR SURVIVAL BASED HOPEFULLY ON WHO
OFFERS AN EFFECTIVE, RELIABLE PRODUCT AND
PROVIDES GOOD AFTER SALES SUPPORT”
spectrum of quality and price balance is of a ‘12kW’ heat pump or a ‘15kW’ heat
offered, although every brand will invariably pump. One brand may be rated on a
HOW HEAT
claim to represent a high quality product. completely different set of operating
Whilst product assembly in Far East conditions, i.e. air temperature, humidity and
countries may not be burdened by western pool water temperature, to another brand.
PUMPS WORK
labour rates, taxes and health and safety One recent view is that as many as 20 Heat pumps use electricity to capture
protocols, it is ultimately the use of low more brands would find their way on to heat and move it from one place to
cost, locally manufactured, components, the UK market in the next two years as another. They don’t generate heat. As
which bring about the low price. the concern for meeting new energy the pool pump circulates the swimming
Assuming that continued inflation in saving targets or just basic cost savings pool’s water, the water drawn from the
China does not disrupt manufacturing base increases the market and drives quality pool passes through a filter and the
costs too much, it is reasonable to assume down. The UK market at this stage seems heat pump heater. The heat pump
that many companies will continue to look determined to fight the quantity of new heater has a fan that draws in the
to import and distribute Far East brands imports with the quality and success of outside air and directs it over the
into the UK market and that this will be a existing brands. spn evaporator coil. Liquid refrigerant within
long term scenario. the evaporator coil absorbs the heat
It is difficult to predict exactly how many from the outside air and becomes a
WHAT THE UK HAS TO OFFER
different heat pump brands will find their gas. The warm gas in the coil then
BZC
way into the UK over the next few years, passes through the compressor. The
telephonesolid 01342 813747
but all will be sold lower price and superior
pc www.bzc.co.uk
compressor increases the heat, creating
performance.
CERTIKIN (H&V DIVISION)
a very hot gas that then passes through
This makes it impossible for a customer to
telephonesolid 01993 778855
the condenser. The condenser transfers
pc www.certikin.co.uk
assess the genuine and true characteristics
HEATSTAR
the heat from the hot gas to the cooler
of a particular brand. Products with good telephonesolid 01983 521 465 pool water circulating through the
genuine specification could find themselves
pc www.heatstar.com
heater. The heated water then returns
lost in a fog of unjustifiable and over-inflated
PARAMOUNT
to the pool. The hot gas, as it flows
telephonesolid 01252 842891
performance claims. through the condenser coil, returns topc www.paramountpools.co.uk
Heat outputs and efficiencies can be POLLET liquid form and back to the evaporator,
tested by using a tank of water of
telephonesolid 0870 458 2354
where the whole process begins again.
pc www.ppgeurope.com
reasonable size, say between 1,000 to
THERMALEC
Heat pump pool heaters work efficiently
2,000 litres, simple thermometers and a as long as the outside temperaturetelephonesolid 01752 313343
simple electrical test meter.
pc www.thermalec.co.uk
remains above the 45ºF–50ºF range.
In general, the energy efficiency of heat
WATERCO
The cooler the outside air they draw in,
telephonesolid 01795 521733
pump swimming pool heaters is measured the more energy they use.
pc www.waterco.eu
by coefficient of performance (COP). The
higher the COP number, the more efficient.
However, there is no standard test for
measuring the COP. Therefore, you really
can’t compare the COPs of different models
unless you know that the manufacturers
used the same test for each model.
For example, the same heat pump will
operate at a higher COP when the outside
air temperature is higher.
Typically, manufacturers measure the
COP by testing a heat pump pool heater
with an outdoor temperature of 80ºF and
pool temperature of 80ºF. COPs usually
range from 3.0 to 7.0, which converts to an
efficiency of 300%–700%. This means that
for every unit of electricity it takes to runs
the compressor, you get 3–7 units of heat
out of the heat pump.
Paul Scott confirms that there is no
industry standard when it comes to rating
the output capacity of a swimming pool heat
Heatstar’s Gemini Climate Control Unit on display at Lyon last autumn
pump, so avoid being drawn down the route
Visit our website at www.swimmingpoolnews.co.uk APRIL 09 swimming pool news 45
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