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  • This is nice in theroy but in reality I'm afraid it's useless. The output of this heater is far too low to have any effect on anything but a wading pool. Look up basic thermodynamics heating tables and you will see that at 1 Kw this thing has the power to raise 10L of water 1 oC in an hour. To put it in perspective, you are trying to heat your pool with less power than the average electric jug. On a warm day, you would probably do better to pump the water through an old car radiator and have a fan blowing air through it. The heat pickup would probably be more than this provides. Good effort but you really need to look up the basic thermodynamics tables to see what you need to do to make something practical.

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