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  • ChrisR296 commented on dmainmon's instructable ESP8266-12E DHT Thermostat2 years ago
    ESP8266-12E DHT Thermostat

    Line 48 of the sketch should be changed to temp_f = dht.readTemperature(false); // Read temperature as Celsiusthen you can replace the references elsewhere in the webstring variable to say the same.

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  • ChrisR296 made the instructable Free Air Conditioning2 years ago
    Free Air Conditioning

    I just did a similar thing in South Carolina but with two shallow wells, water that's only 68 degrees F, a 12v pump rated at 1 GPH, and a heat exchange coil made for a commercial freezer. I'm dumping the water back into the ground via the second well but I may use the combined wells to draw for an irrigation setup. Anyone have any idea if a car radiator would be more or less effective in such a setup?Note: For the environmentally conscious, my system is a closed loop (if used for irrigation later a solenoid/valve would be used as part of a back flow preventer), the freezer coil was clean and never used, and the radiator I may experiment with is an after market transmission cooling job that was purchased brand new so I'm not dumping oil/refrigerant/antifreeze into the earth.I know my pic...

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    I just did a similar thing in South Carolina but with two shallow wells, water that's only 68 degrees F, a 12v pump rated at 1 GPH, and a heat exchange coil made for a commercial freezer. I'm dumping the water back into the ground via the second well but I may use the combined wells to draw for an irrigation setup. Anyone have any idea if a car radiator would be more or less effective in such a setup?Note: For the environmentally conscious, my system is a closed loop (if used for irrigation later a solenoid/valve would be used as part of a back flow preventer), the freezer coil was clean and never used, and the radiator I may experiment with is an after market transmission cooling job that was purchased brand new so I'm not dumping oil/refrigerant/antifreeze into the earth.I know my picture is pretty nasty but it shows where I've used a washing machine wall valve setup as the inside interface, the pump (with a prefilter hidden behind the hose that will be for leakage/condensate draining) and even a shot of one of the shallow well drills I used to get 16' into the ground before getting stopped by some layer of extremely tough clay (I assume, since I can get my drill teeth to start notching into, but can't break through otherwise).A 12V pump and fan were the original plan with a solar panel on the garage overhang until I learned that my HOA has a policy about panels (can't be visible from the front of the house, and of course the front of my house faces South). I plan on making a two axis solar tracker for that panel in the back yard and may move the pump back there with it...

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  • ChrisR296 commented on Vyger's instructable Free Air Conditioning2 years ago
    Free Air Conditioning

    It's my understanding that you'd want a separate return well for that. I'm currently doing that with a set of shallow wells in my yard but I'm only trying to cool my garage at this point (Charleston, SC area with 16' wells and water at ~68F). If I returned the water back into the same well that warmer water would be sucked back up into the system instead of the cooler water from below and around, though in his case he does have a lot more well water head to work with than I do...

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