Use a "hot box" on the roof instead of a fan. A simple metal black box with a pipe coming in and out will heat up the air, that air will rise and draw air through your cooling pipes(through negative pressure) into the house. The best thing about it is that it is self regulating. The warmer the box on the roof gets the stronger the draw.

@GrowTreeOrganics

Ай бұрын

We'll actually incorporate that idea later on! We just need to get further into the build! Appreciate that!😅✌🏾

@dottiannblakemore9231

Ай бұрын

Curious as to where you are at. I am in Sun Valley Az​@@GrowTreeOrganics

@GrowTreeOrganics

Ай бұрын

Right on! We're in the area of Seligman and Ash Fork!✌🏾

@frictionhitch

Ай бұрын

@@GrowTreeOrganics We are near Ramah New Mexico. A few hours but we have kindred goals.

@GrowTreeOrganics

Ай бұрын

@@frictionhitch oh nice! Perhaps we'll have to meet up in the future!?😅✌🏾

Cooling warm humid air to the dewpoint results in condensation...an ideal scenario for mold growth.

@GrowTreeOrganics

Ай бұрын

You're definitely correct! Why we're making the tube with stone!✌🏾

@pcatful

Ай бұрын

Good thing the air is dry in the desert. And other points-the dewpoint probably is not reached, plus the air is constantly moving. I don’t know what happens with the “monsoon” action described. I would be suspect of purposely letting moisture into the unreachable parts of the tubes.🎉 I think traditional methods used fountains at the base of cooling towers inside the home.

@GrowTreeOrganics

Ай бұрын

@@pcatful I'd totally agree with your points!✌🏾

I've been looking for a great explaination on how to install a DIY system like this for my tiny house. Thanks!

@GrowTreeOrganics

Ай бұрын

No worries, glad the video could help you out!👍🏾✌🏾

I am always heavily impressed after watching your videos. You guys are very spot on with everything that you do. Besides the fact that plants prefer an ideal temperature spectrum, temperature control is usually also a big cost for any household. And too much humidity inside can also cause molds. As always a huge 👍

@GrowTreeOrganics

Ай бұрын

Really appreciate it! There's still a lot more for us to complete and everything will be more understandable once we get further into everything!✌🏾

Thanks for the info, great compilation of graphics examples.

@GrowTreeOrganics

5 күн бұрын

Super glad it was a helpful video for you! Thanks for tuning in!✌🏾

I'm an inspector & Builder with 4 construction degrees and have never heard of this. This is amazing for desert areas. Thanks for this video you just opened a whole can of worms for me. lol This has got to be ancient technology before the days of AC.

@GrowTreeOrganics

3 күн бұрын

I see, nice to hear from an inspector and builder! Definitely ancient, long forgotten technology, that does actually work!✌🏾

@y0nd3r

2 күн бұрын

@@GrowTreeOrganics but does it work in humid environments?

@GrowTreeOrganics

2 күн бұрын

​@@y0nd3r it does! This does actually act as a dehumidifier in a sense. Burying the tubes far enough in the ground will be a cold point for when hot air comes in and condenses and most people have holes in the tubes underground to let water sink into the ground from the pipe. In more humid environments it will buffer that humidity more! appreciate the question✌🏾

@y0nd3r

2 күн бұрын

@@GrowTreeOrganics where I am, the water table is also pretty high. I wonder if that would complicate things. I live inner city and the lots are fairly small. Doubt I have 50 feet in a straight line from the house to the back fence, but I've thought about doing something like this because the only Electric company we are allowed to use has the Corporation Commission in their back pocket and all rate hikes are rubber stamped approved.

@chadford8500

Күн бұрын

Have to be careful with this, can grow mold in the tube from condensation in the Summer if not designed right, and then it gets blown into your house... From what i've seen you have to have a slit in the bottom of the tube running the length of the tube to let water from condensation drain out. Also have to have a gravel base under it and some mesh around the tube to cover the slit and keep bugs out...

See that big tree behind you at 5:40? I would bet that if your cooling tube intake was in the shade of that tree, it would give you noticeably cooler air. Just walking down a city street, passing under a tree results in surprisingly cooler air temperature.

@GrowTreeOrganics

Ай бұрын

We're definitely not finished. We'll be building the tubes towards the trees in the back for the shade and we'll line a basin out with rubber to create an evaporative cooling system. ✌🏾

So cool! ;)

@GrowTreeOrganics

Ай бұрын

😂✌🏾

Fascinating. Love your explanations.

@GrowTreeOrganics

Ай бұрын

Thank you!✌🏾

He likes big words and is a master of synonyms.

@GrowTreeOrganics

3 күн бұрын

You're right, thank you!👍🏾✌🏾

SUBSCRIBED! Since you are interested in evaporative cooling, you might also like *indirect* evaporative cooling. Exterior air is drawn in and cooled, without adding humidity to the portion that stays inside. I have wondered about adding a second stage, with normal evaporative cooling, to get a bigger overall temp drop. In the desert, adding humidity is probably a good thing. But TWO cooling stages is probably icing on the cake.

@GrowTreeOrganics

4 күн бұрын

Appreciate you joining the journey! I have a couple other videos describing our full system for Heating and cooling. The cooling tubes are apart of that system, so creating redundancy with simple tech. But I think what you're talking about, that essentially is what we're doing. We'll be drawing in outside air that will be cooled by the tubes that will be buried eventually. But we'll create a swamp cooler inside, so we're not drawing humidity through the tubes, just inside. But im definitely Hip to your jive! Appreciate your input!✌🏾

I understand the passive cooling system, running pipes underground, however Im not sure how you expect hot/warm air to travel downwards, then travel horizontally then come back out cool, I know with a venturi system you could draw air out but that doesnt get it in where a small blower would do all of that, on the other hand, Evaporative Air Con is something that off grid homes can have simply and cost effective, with a total outlay for less than $500 and a days work, we use to run a small 12V Solar Panel Grid hooked up to a 12V Truck Battery with a Battery Tender the house ran 12V lights, small gas stove using bottle gas, in winter you did as they did 150 years ago and use a wood stove for cooking and passive heating, I guess its the difference of living off grid or doing it as green as humanly possible in the confines of ones monetary wealth. The building construction is the key, having massive thick solid walls will help cool the internals down, yet in winter it will be so cold that it will be almost unlivable, in Summer time you need to get rid of hot air out of the ceiling and again our fore fathers designed roofs to do exactly that in a passive way, I guess we need to look back in our distant pass to find the answers we need today. Oh Im guessing you all think Im not every green, you're right there, I prefer to be practical and use whats available and I know what works, do many of you know that Bubble Wrap was originally invented as a insulator.

@GrowTreeOrganics

4 күн бұрын

Convection is the answer you're looking for on how this system will work! 😅 Also why I show Earthship pictures, but maybe I wasn't all the way clear with everything... always room for improvement! We're not 100 percent done with the tubes or the structure its attached to. You can watch the latest video to see how everything has progressed! Appreciate your input and your own experience!✌🏾

Amazingly Simple & Common Sense! Thank you for sharing this video. Our people have utilized those concepts in traditional methods of living for thousands of years and living off the land, living in sustainable ways & in harmony with nature. We have lost some of our vital traditional, customary ways, we have also lost humongous natural resources due to colonization, introduction of Western religions & the so called development of Western, civilized society. I must say the Western civilized methods of governing has its many advantages in free press, channels of expressing opinions, ideas, innovations, stopping conflicts, wars between different tribes, nations & introduction of fair judiciary court systems & punishment of wrong doers. I thank you again & commend your good work in amplifying these cooling systems for homes. If all mankind can see our existence as a creation of a higher being who molded clay to make the first human Adam & then Eve & commanded them to multiply and live in harmony with nature & if mankind can do that & live in harmony with nature, utilize Green Technologies & on a wider wholescale then we may make a better world for ourselves and for our children and our grand children. We should think globally & act locally like what you are doing in building a cooling system & documenting this & educating others. Thank you. Greetings from Madang, Papua New Guinea!

@GrowTreeOrganics

2 күн бұрын

No worries, thank you! So much has been lost in history, tradition, and what use to be common knowledge. In also simply learning what's been lost from time!✌🏾

In Az you gotta bury the tubes at least 6 1/2 feet down due to the intense heat.

@GrowTreeOrganics

Ай бұрын

You're totally right! We still have a lot to do, which includes building the tubes more and burying more!✌🏾

Will be interested in how well this works out. I'm not as adventurous as you, I think I would build a dog-house sized system before I went all in.

@GrowTreeOrganics

7 күн бұрын

I've used this design before on the previous 4 Earthships we built. They definitely work! This design however will hopefully improve the cooling effect even more. We've still got ay little ways to go before it's finished! ✌🏾

@harrynut3044

3 күн бұрын

They dont work for shit. That's why nobody ever talks about Temperature numbers. You'll get 80 degree air coming out and these people will tell you it works. It's beyond retarded to do this when an evaporate cooler would do a way better job and a shit ton less money.

those tubes need to be wwwaaayyy deeper. might as well just use some pex and do a geothermal loop. swamp coolers dont work when the dew point reaches a certain point. here in phoenix swamp coolers dont do crap june thru august, which is when you really need some extra cooling. you want the home as deep into the ground as you can get it.

@GrowTreeOrganics

6 күн бұрын

We're definitely not finished, and the tubes will be buried more. We also have to back bury more on the structure as well. Lots still unfinished! I'll have all the videos for when we get more finished on everything and can do the tests on temperature and humidity and how well everything works. You can Look back on some of my older videos where I show temperature and humidity inside our old Earthship Home in Montana. These tubes are different than how most people build them, so I hope to show how our method could be an improvement from old thinking and old design. Appreciate your input!✌🏾

If I undostood right, the tube should not go down and then up again, otherwise you can create a siphon effect once the deep point gets flooded by the condensation water. That would block the air. So make sure, the tube steadily goes downwards, so the water can just run out freely. Otherwise you might have to pump out the water once in a while.

@GrowTreeOrganics

Ай бұрын

You're most definitely right, only the context is what's confusing, because in the video I'm more referring to the downward angle horizontally as to direct the water away, almost like a sidewalk curve. But the we will be cautious with the vertical tube angle so as to not cause a water plug of any sort!✌🏾

One issue with condensation in your tube is the possibility of mold and bacteria thriving. In wetter environments, this can make it wiser to use a separate liquid loop connected to some ratiators with 12v fans inside with these and a small pump running off solar. Another consideration is adding screens to block varmints down to mice and depending on your area snakes or scorpions

@GrowTreeOrganics

5 күн бұрын

We're in Northern Arizona, very hot and dry. I don't think we'll have much of an issue with mold and such. It will also be apart of the finished tubes that we'll have screen and mesh to keep rodents and pests out. Although we do have 5 outdoor cats on mouse patrol here too!😅✌🏾

@johnassal5838

5 күн бұрын

@GrowTreeOrganics One thing I haven't heard of anyone trying is separating a hot and a cold field. It's more effort but if you had one you only ever pulled air through when it's cold out then you could get much lower temps from the cold side and then do the same for the hot side. You just have to be able to divert it's output from indoors while "charging" it with heat during summer or with cold over winter. Twice as much digging and a little more complexity but you'd basically never need to burn wood for warmth unless you felt like it and still stay cool in whatever the AZ equivalent turns out to be of the crazy heat waves starting to hit the PNW...

@GrowTreeOrganics

4 күн бұрын

@@johnassal5838 I see what you're saying. I guess that's similar to me why we're doing the tubes with rocks, acting as thermal mass to store hot and cold Temps to help reduce those energy needs inside. Appreciate your insight on that!✌🏾

@johnassal5838

4 күн бұрын

@GrowTreeOrganics Yeah. It's amazing how many BTU are in a few hundred cubic yards of dirt. AFAIK rock is actually quite a bit more thermally conductive than dry earth so it's sort of extending the surface area of your earth tube's but unless you're running flue gases through they won't make much better use of the relstively low high temperatures they'll see. Definitely cheaper than any other sort of tube you could use though.

@GrowTreeOrganics

4 күн бұрын

@@johnassal5838 I see nice! I'll look into that rock too! Sounds interesting! Thanks for that!✌🏾

Curious if you could share more about the rock tube construction method? Is it using grout? Adobe? Any wire reinforcement?

@GrowTreeOrganics

Ай бұрын

Totally can do! We've still got plenty more "tube" to do✌🏾

@SamsLiberty

Ай бұрын

I see what you did there; 😁

@jamesmatheson5115

4 күн бұрын

My concern there is if water is laying inside the tube for long periods of time you could be looking at health issues, even modern Evaporative Systems need cleaning to stop Legionnaires' disease.

@GrowTreeOrganics

4 күн бұрын

@@jamesmatheson5115 think it helps we live in the Desert and it's very very dry, but also that the finished "pipes" will be designed in a way to divert water away, towards water catchment basins and such. Air will be constantly drawn through the tubes, I'm not imagining significant lingering moisture.✌🏾

Don't use this for a home, because the tube can bring in high levels or radon as well as black mold. Better option is a hydronic (water) system using a heat exchanger (radiator). Still will use little power. That said, best option to insulate your home well. best bang for the buck is 2x6 with 24 oc framing and 2" rigid foam for exterior. 12" SIP roof if you can include in your budget.

@GrowTreeOrganics

3 күн бұрын

Wouldn't that be why you would do a radon test before hand and also why you would have an air filter, like any other house? Heat Exchangers are pretty nice though too. I've been to a few houses with em and people definitely say they're very efficient and work really well. Lots of options for efficient heating and cooling systems out there! Thanks for your thoughts on the matter!✌🏾

@guytech7310

3 күн бұрын

@@GrowTreeOrganics Air filter will not stop radon, nor totally filter all black mold. Radon is every where in the ground.

@GrowTreeOrganics

3 күн бұрын

@@guytech7310 it is everywhere, but I never said a filter would take out radon, only that people would choose to test their ground to make sure. And basically every house has mold. But we're building the tubes in a way that no mold will be growing on the inside, plus we're in the Desert...there are other people with this system that can attest to no mold issues. It's also that constant fresh air is coming in and being exhausted out. So no recirculating air. But I can understand where you're coming from.✌🏾

Aren’t the metal tubes best for heat transfer?

@GrowTreeOrganics

Ай бұрын

They can be, it just depends how you wanna do it yourself and your own goals. We're just utilizing the materials at hand. Rocks are good thermal mass and since their cooling tubes, we want the tube to absorb as much heat from outside as possible. ✌🏾

1:21 Dis dude lookin' like Azazello from the The Island Of Dr. Moreau. He even did the head twitch sniff. 🤣🤣🤣🤣🤣

@GrowTreeOrganics

4 күн бұрын

😅 I don't know who that is, but that's still funny!✌🏾

so close but yet so far, the biggest mistake I always see is that earth tube people take outside air and try and cool it to room temperatures. In reality your far better off to take inside air and circulate it in a sealed closed loop to cool the air. why take the 100 degree outside air and try to cool it down to 85 when you could take the cooler inside air and provide nearly the same drop in temperature. of course there are caveats. The ideal slope of any drain line is ¼ inch per foot of pipe. In other words, for every foot the pipe travels horizontally, it should be dropping ¼ inch vertically. Many drains either have too little slope or too much slope. That's right, it is possible to have too much slope in your drain lines. second the intake should be higher than the exhaust. air is cooled and is heavier and should auto siphon. This also allows you to clean your system with mist or even rags tied to a rope and drug through. Yes you need makeup air from the outside but that system should be separate from the main cooling loops. Third is RADON. no need to bring that into you home if you do not have to. that is the big down side to earth formed tubes. Do a radon test to make sure that is not a problem. You are definitely headed in the right direction with all your ideas but adding a little modern science to this could easily give you a large increase in efficiency. The only problem with the outline methods is there is a substantial cost increase. I understand a lot of these builds are done on the cheap using labor as the main variable. Sorry for being a grumpy old dude but I have walked this road already and do not want to see people make the same mistakes I did. Would you like to know more? Best wishes and I hope you get the lifestyle your dreaming of because it is worth it.

@GrowTreeOrganics

2 күн бұрын

You were mentioning radon, so wouldn't circulating the air inside contain the radon inside the house as apposed to the tubes bringing in fresh air and circulating fresh air constantly? It's hard to show perspective as well on video but our tubes have a slight downward tilt for any moisture, so it will go out as apposed to coming into the house. We're actually not fully finished with the tubes, so a ways to go, as well as the rest of the structure to, so it's hard to see what all this will exactly look like and function. But we are trying to do what you're saying, Simple tech, but adding the science to it. No worries on sounding grumpy, everyone has their free will to express their thoughts and opinions. Appreciate your insight and perspective on this. We're creating our lifestyle, one rock at a time! Thanks for stopping in!✌🏾

I’m confused the tubes look above grade why would u count them as geothermal tubes? Or consider them under ground

@GrowTreeOrganics

Ай бұрын

We still have much to finish and complete on the backside, which includes burying the tubes. We just can't dig down because of rocks, so we'll be building up the backside and building it up so as to "sink the pipes more underground"✌🏾

Corrugated pipes would be much stronger. What about critter control?

@GrowTreeOrganics

Ай бұрын

Most of the time on Earthships they're using corrugated pipe. We only needed a little section to go through the gabion walls, so we didn't need anything special✌🏾

i bet burying a standard aluminum tube could work, since it is thermally conductive

@GrowTreeOrganics

Ай бұрын

It definitely would work, most people use culvert pipe, but you can use all kinds of material! This is just the way we're making our tubes. It's the concept that's solid, the design can be changed since we're all different and have different ideas, goals, and such. ✌🏾

I know someone who kind of did this. He won a truly ridiculously large amount of corrugated tube drunkly bidding on a government auction. He ended them as air supplies for the air heat pump. Said his power bill is a fraction of what it used to be

@GrowTreeOrganics

Ай бұрын

Too funny about the guy you know! 🤣 people definitely use these in multiple different ways and depending what you're using it for is what creates the labeling!✌🏾

How does it preform in high humidity ....

@GrowTreeOrganics

2 күн бұрын

Pretty well from multiple people on the east cost that have installed this system!✌🏾

@MalleusDei275

2 күн бұрын

Our soil temperature is around 75.... Seems the air at that temperature can hold to much moisture to be directly introduced to a moist living space....would make it muggy...would work great in the winter here.

this is going to sound really picky, but is there a loss of micro organisms in the soil surrounding the tube as the summer air warms the earth and degrades the evolved habitat of the micro life? I know, pretty picky. lol.

@GrowTreeOrganics

3 күн бұрын

No worries, I don't think that will be a problem, the microorganisms that are here are adapted to the harsh environment. So I think I would actually help microbes in the sense it would be cooler and not bombarded with UV, but at the same time there won't be really any food for them. There's still plenty of space for the microorganisms, especially now we've done all these earthworks and starting to add more organic material and diversity to the surrounding area. Are little tubes won't be taking away much. Appreciate the question!✌🏾

Use this information for entertainment. Can work only on KZread videos.

@GrowTreeOrganics

4 күн бұрын

It works in real life! I'll have the video in the future showing temperature differences and the results of everything! But it can be entertaining information for practical use!✌🏾

@adobo6905

4 күн бұрын

@@GrowTreeOrganics Temperature is half the equation you need to measure the air volume that comes with that temperature.

@GrowTreeOrganics

4 күн бұрын

@@adobo6905 you're definitely right on that! I'll try to get that kind of information when we finish these cooling tubes! Appreciate your feedback.✌🏾

Looks like a great way to get mice in your house

@GrowTreeOrganics

Ай бұрын

Good thing we'll be putting screen and wire mesh in the openings, just like any other house. Also helps we have 5 cats on mouse patrol here!✌🏾

@jkmarshall3553

5 күн бұрын

@@GrowTreeOrganics Patrol cats, cool!

@GrowTreeOrganics

5 күн бұрын

@@jkmarshall3553 😅✌🏾

Oh no! you gave up the secrets of the ever green troll ending. Glad that the project is so big you can easily move to other things.

@GrowTreeOrganics

Ай бұрын

Oh, but you see the troll endings are just beginning!😅✌🏾

This works great in low humidity areas. Try this in Houston and you will be miserable sadly.

@GrowTreeOrganics

5 күн бұрын

Takes a little adjusting of design but there are people in more humid places that have used this concept and claim they've had no mold problems or lack of cooling. Actually Someone in the comment section said they live in Missouri I think but they've used this concept for years and had no problems with their set up. ✌🏾

I think you need a lesson on latent heat and calorimetry. Some of what you say about condensation doesn't make sense, like opposite of what I think is supposed to happen. Maybe I'm wrong. I'm not sure you know what you're talking about.

@GrowTreeOrganics

Ай бұрын

What was it that you didn't find correct? I'm curious so I can address it in the next video! Appreciate the feedback!✌🏾

this is poor execution tbh your pipes are too shallow and too short the ground temperature will be hot the lack of moisture control is going to be a major problem with mold growth dont try a swamp cooler for the love of god the humidity is going to be a problem even without one and if you setup one mold will infest everything

@GrowTreeOrganics

Ай бұрын

You'll have to rewatch, the answer to your statement is there. ✌🏾

@jameskniskern2261

Ай бұрын

We put in 3 earth air tubes into our straw bale house here in very humid central Kentucky, USA. We have 130 feet of 6 inch plastic corrugated drain pipe which is cut on the bottom side. Laid down into a bed of gravel which has a 4 inch drain that daylights downhill from the house. All of that is buried 7 feet deep. The system has been functioning well for almost 8 years now. No mold, no "cavey" smell. Good conditioned air brought into the house year round for the cost of running a bathroom fan. 35 cubic feet per minute. We run it year round and the air temperature is 67F coming out of the tubes. With all that said, I'm not yet convinced that your system is deep enough to deal with the hot, dry desert air for long. It is a thermal mass calculation. Because your tubes are shallow, you don't have enough thermal mass working for you. Good luck!

@GrowTreeOrganics

Ай бұрын

@@jameskniskern2261 that's awesome! The misconception of this video is I didn't emphasize that we are not finished with the tubes and we still have a way to go. I wanted to introduce the concept and how we're utilizing it in our build. Appreciate your testament of your earth tubes!✌🏾

Wont work.

@GrowTreeOrganics

3 күн бұрын

Oh it works!😅✌🏾

@harrynut3044

3 күн бұрын

@@GrowTreeOrganics Yea? what's your temperature rise ?

@GrowTreeOrganics

3 күн бұрын

@@harrynut3044 well this structure isn't finished nor are the tubes but the 4 other Earthships I built with cooling tubes dropped the outside air temperature by 20 degrees, coupled with the thermal mass of the structures , the inside of the structures were 25 to 30 degrees cooler than outside temperatures. And that was without a fan or using any electricity. This isn't necessarily the end all be all for cooling air, nor am i suggesting this is the one and only answer or design. This video we're usinga different design in material than what was used before, so it's what I like to say the concept is solid the design is flexible. Anyone could do this concept, but tweak it to how they want, add a fan, a swamp cooler.... otherwise that's why there are AC units you can buy. ✌🏾

@harrynut3044

3 күн бұрын

That's not an answer. You claimed it works....so what is your Temperature Rise? Maybe you don't know what that means....So let me rephrase the question. When it's 90 Degrees outside, what is your Supply Air Temperature ?

@harrynut3044

3 күн бұрын

@@GrowTreeOrganics Thanks for the reply. Swamp coolers do exactly the same, about 20 degree difference but only until about 85 degrees outside then they cant keep up. I'm a retired HVAC contractor and know this shit doesn't work in Hot temperatures but Im seeing lots of channels pushing this concept like its as good as refrigerated air. I could see it working if you dig deep enough to reach that 55 degree depth. All very interesting...thanks again for the reply.