Swimming pools blog

3 responses so far ↓

• 1 janis_40 // Sep 25, 2004 at 11:38 pm

  In a message dated 6/3/2003 8:05:04 AM Central Daylight Time, secbyte@…
  writes:
  Have you figured out how many BTUs you can generate? A pool heater of
  400,000 BTUs will only heat the pool 2 degrees per hour.
  Ken (electricjet)

• 2 janis_40 // Sep 27, 2004 at 2:35 pm

  In a message dated 6/3/2003 9:28:56 AM Central Daylight Time, secbyte@…
  writes:
  Hey George I have been to the Pocanos. I went to the Singer-Link factories
  many years ago when I worked on simulators in the Air Force.
  If you are going to be using it anyway maybe you could build a heat exchanger
  out of some heavy guage copper tubing and place it under the firebox. Do
  you have sand in the bottom to build your fire on or do you have some type of
  grate? You need to use a small diameter tubing to capture the most heat
  possible. Many small tubes are better than one big one.
  Have fun building one.
  Ken (electricjet)

• 3 janis_40 // Oct 2, 2004 at 11:26 am

  In a message dated 6/4/2003 8:42:04 AM Central Daylight Time, secbyte@…
  writes:
  George, the metal of choise for heat transfer is copper but you are correct
  in that the heat will melt it and that is why I suggested maybe a bed of sand
  to protect it. SS is better in that it will withstand the heat but either way
  one big tube will not transfer much heat unless you make a great number (10
  or more ) of coils which adds to the lenght of piping you pump has to push the
  water through. One idea I have is to use a bypass valve ans use 3/4 inch
  copper tubing for you heat exchanger and set the valve so only part of the flow
  goes through the heater and you can adjust the valve to regulate the
  temperature. One major problem is what happens when you want to turn the pool
  heater
  off? If you stop the flow through the heat exchanger with the fireplace still
  on and the water in the pipes will be superheated steam and could burst a pipe
  and really hurt someone or the heat exchanger would melt because there is
  
  nothing to cool it. In this case SS would be the way to go because of its
  higher
  melting point.
  As far as ph yes you nust keep it in the ideal range. Low pH is the killer
  of more pool heaters than any other cause.
  And you thought this pool heater idea was going to be easy!
  Ken (electricjet)

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