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  1. 27-08-2012 #24
    Jonathan's Avatar
    Lives in Leicester (Home) or Nottingham University (2nd Home), United Kingdom.
    Jonathan
    Last Activity: 05-04-2020 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 3,571. Received thanks 325 times, giving thanks to others 8 times. Referred 1 members to the community.
    Not as silly an idea as it might seem - if the temperature of the water from the spindle is greater than that of the tank (i.e. put in a quick op-amp circuit to compare it) you could put a heat exchanger in the tank and pump the water through that so it's an isolated system and the fish keep cosy for free.
    Last edited by Jonathan; 27-08-2012 at 08:13 PM.
    Old router build log here. New router build log here. Lathe build log here.
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