cool project part five

  • Added:  10 days ago
  • Final test of the new Pepino swamp cooler. For this test the pump cycle was set to 29 seconds on / 100 seconds off. Total elapsed time was 5 1/2 minutes which is a little too long to stare at so I edited out a little. Still pretty swift cooling considering. Their was no edit from the beginning to the initial drop of the temperature. It happened fast because I had already run some water through the pad. A twenty degree drop is about the best you can do with a swamp cooler although I can max it out at about 25° on days when the humidity is below 10%. When this Pepino gets installed for the new owner, a second cooler will be used instead of my now famous bucket. Here is a basic parts list. Coolers: Pump: Timer circuit: Evaporative pad:;gs_cooling_fans-gs_evaporative_coolers;pg109009_109009.html Fans: You can find these at any number of surplus electronics websites - just don't buy them from RadioShack or you will pay way too much. News Theme by Kevin MacLeod is licensed under a Creative Commons Attribution license ( Artist:
  • Video CategoriesScience & Technology
  • Runtime: 3:10
  • Tags for this video:  Premiere_Elements_15  John Wells  The Field Lab  Terlingua  The Big Bend  living off the grid  Pepino Swamp cooler  how to build a swamp cooler that actually works  12 VDC swamp cooler  Canon T3i  Takstar SGC - 598  

Comments: 13

  • On The Rhodes Again'

    Wish these things worked in East Texas (90% humidity). Our heat will make it tough to ever go all the way off the grid out here. Great series though. Amazing what can be DIY'd. My wife and I love this channel.

    • On The Rhodes Again'
      On The Rhodes Again' 3 days ago

      I will have to talk to my wife about that curling iron! Wish me luck on that. I reckon when the time comes we would be looking at something under 450 sq ft. And darn good insulation. Hope those bunnies found some water today also.

    • TheFieldLab
      TheFieldLab 3 days ago

      All depends on what size house you are trying to keep cool. It only takes about 1,000 watts of solar and an appropriately sized battery bank to to run a 10,000 BTU air conditioner. Just don't run your microwave, toaster oven, and curling iron at the same time...

  • Allen Hare
    Allen Hare 6 days ago

    JW, your fabrication skills always amaze me.
    Very nice work.

  • donald wycoff
    donald wycoff 10 days ago

    Nice! Amazing how fast those temperatures melted off at the point of measure. How long was it before the ambient temp in the enclosed room changed? I imagine the room felt the win pretty fast.

    • TheFieldLab
      TheFieldLab 9 days ago

      During the hottest part of the summer out here, the humidity rarely gets above 10%.

    • donald wycoff
      donald wycoff 10 days ago

      Please tell me that its a dry heat. I grew up in Sacramento. 120 degree summers. But a dry heat. In mid-adulthood I lived in New England 20+ years, and 100% humidity at 90 degrees is terrible. Swamp coolers don't do well in high humidity. So we just lived with the heat... In high humidity it feels like you are sleeping on a warm damp sponge.

    • Sam Finn
      Sam Finn 10 days ago

      A cool night for sleeping is waaaay up there on the priorities list.

    • TheFieldLab
      TheFieldLab 10 days ago

      It is actually a very slow process - and it depends on the size of the space and the amount of insulation. Pepino can only keep up if the outside temperature is below 100°...after that it is a loosing battle. The nice thing is it helps to cool down my hut after the sun goes down and the outside temperature starts to drop allowing for comfortable sleeping temperature.

  • MJ Healthy Living (Miss Judy)

    so cool! LOL - Im so punny! lol

  • rubber tramp channel

    way cool !

  • Sam Finn
    Sam Finn 10 days ago

    Very cool.  So much for global warming.

  • CyberGypsy
    CyberGypsy 10 days ago

    well done.... thanks

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