Geothermal Cooling Tricks and Hacks
275,324
Published 2021-07-25
Chapters:
00:00 Introduction
01:44 Water test
04:03 Geothermal Options
07:35 Sizing
09:00 Adding Liquid
09:52 Curling the Lines
10:20 Heat Pumps
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All Comments (21)
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Do you know any geothermal tricks and hacks?
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So glad YouTube suggested your channel to me. I've been researching geothermal cooling for a while but was put off by the prices. Will definitely give this a try when I'm ready to build our home. New subscriber, and thanks!
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To use with a central HVAC system, a radiator could be added into your duct work (inside a sealed box). It will supplement the air temp to decrease the demand on your HVAC unit.
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I appreciate watching your videos since I came across your channel a couple of months ago. I tend to live in the city so digging a long enough and deep enough trench to do this would not be possible ... but you give me pause to maybe move outside city limits. Keep up the videos.
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It's good to note that the radiator or windshield fluids also contain preservatives, which stop microorganisms from fouling your system. So if you use pure glycols make sure you add preservatives.
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The thing to remember when talking to a heat and air guy is he doesn't want you to do it yourself. Plus he gets a commission on whatever they sell you.
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thanks for this info, i've studied a lot of geothermal situations and in my books it's the best for the price.
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What about circulation pumps? any tips on sizing the pump based on the system installed? Also does a larger pipe = more cooling? ie can you used less length of a larger pipe to achieve equivalent BTU power?
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Awesome answers to some great questions, thanks.
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For straight-line pipe burial, an ordinary trencher would probably be more practical than a backhoe or an excavator. Some have extensions for extra depth.
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My ground temperature is pretty close to 57 F I did not actually measure it. But I took a trip due west to visit the Jack Daniels whiskey facility. They use ground temp water as part of their process. It comes from a cave. So while your method of figuring the ground temp is indeed correct thought mine was a lot more fun.
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Great Video. Just wanted to ask what the best 3/4" pipe to use for 800ft (average 2-ton AC performance) at about 5 to 8 ft in sand ground material? What's the best quality brand pipe and depth for coiling the pipe?
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Thanks for the follow up! I’m in Manitoba and seriously planning this for next year. The main argument against this is that for under $2000 I can install a smaller mini-split that has a professional appearance my wife will appreciate. When I have panels and batteries they be overproducing when it’s hot anyways. And a mini-split can be used as a heater in spring and fall. How I can make a nice looking blower is a question. If I did do it I could have valves to divert for garage heating in winter.
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Is it just about square footage then? Would a 400 or so foot system be able to cool a greenhouse or garage sized house?
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Hey you got me all excited about this idea. You explain well what all you need. But you stop at the fan and the radiator. How do I get this cold air into my house? Please do another video and explain that part. Thank you
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Another question. These systems often depend on charging the ground with hot during summer and cold during winter, and the ground volume storing that temperature, which means that eventually surface area can outstrip the storage capacity, and depending on the nature of the area, reducing the cooling or heating effect (you can run lines into solid rocks hundreds feet to pick up heating from radioactive decay even, but over a century deplete the built up warmth). Is there a better way to design it?
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Thank you for these amazing videos. I have one question though, I live in India in a very humid environment and I mostly need this system for cooling so can this system remove humidity without a heat pump? is there any other way to remove humidity using this system?
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Thank you for this! Do you have a way to calculate the length and width of the trench per feet of pipe if coiled?
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Here I am. I will explore this idea and I hope expand on it.
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Thank you for actually showing Celsius as well
