Elecro Engineering EVOLUTION Installation & Operating Manual page 9

Q: How long will it take to heat my pool?
A: Assuming no heat losses, and a heater sized in the ratio 1.5-kW
per 1,000 UK gallons of water (4,545-litres): it will take 2 days of
continuous running to raise the temperature of a pool from tap
temperature to swimming temperature. Heat loss will slow the heating
process, particularly during periods of cold weather, hence the higher
the water temperature is to be maintained above average ambient air
temperature, the slower the heating process will become.
The only influencing factors are the level of insulation and the location
of the pool with regard to wind shelter.
Useful advice: To reduce running costs and speed up the heating process;
Insulate the pool wherever possible. A floating solar cover is an essential
minimum to retain heat.
Quick Function Test
Observe the main electricity meter when the heater is on (ie: red light
'On') and then observe it again when the heater is in the standby mode
(ie: amber light 'On') The test should show that the meter is recording
more electricity being used by the heater when the red light is 'On'. It is
impossible for an electric heater to waste energy, if it is drawing power
then that power will be turned into heat that will be transferred to the
water.
Accurate Function Test
If a more accurate test is required to confirm that your heater is delivering
the specified heat output, two electricity meter readings will need to be
taken from the properties main electricity meter, with an exact one hour
interval (ie: take one meter reading and then a second reading exactly one
hour later) then by subtracting the first reading from the second reading
the number of units (kilo watts kW) consumed can be calculated. Note that
your heater is also rated in kW hours.
The pool pump and heater will need to be running continuously during
the test (ie: with the heater red light 'On') To avoid inaccurate results
when performing this test, it is important to refrain from using other high
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