Those 8 tubes are just naturally drawn air movement? Have you measured intake and output air temp changes yet? What about the drop in humidity? I’m impressed.
@@mantihomestead I will keep watching for updates. I am looking to do something somewhat similar in a High Tunnel. 39 degrees latitude here in USA. Good luck.
Great project, I'd really like to see more about how you are drawing the warmed air up through the pipes you buried in the other video. You just doing a plywood plenum or manifold or whatever? This video here showed something I had not seen before, the cold sink with the pipes angled slightly up into the grow bed. Really great idea.
Did you just guess the length to go underground 20' and that'd it work? I would think you'd want to go much further to get more of the ground heat but if that works that's awesome!
@mantihomestead How are you keeping the cold sink pipes from collecting dirt, and how are you cleaning them? Is it simply wide enough that you can vacuum it out with a shop vacuum as needed?
@@mantihomestead Is all ventilation passive without power? How do you move the air in the long lateral tubes? I didn't see any fans on your other videos.
Do you think that a cold air drop would be beneficial with a geothermal setup like the "greenhouse in the snow"? In your estimation, has this been a good design feature for your greenhouse?
That is a great question. Have you seen the video where I threw the smoke bomb in the cold air drop? I’ll have to go back and see which one it was. But it shows you the air movement. It’s hard for me to tell how much that does or doesn’t help. I think it definitely contributes to getting the coldest air off of the bottom of the greenhouse. But if you do have the true “greenhouse in the snow” the fans and geothermal probably will take care of a lot of that. I need to get a better thermal gone so I can get an idea of the airflow temperatures. But if you can go watch that video with a smoke bomb.
@@mantihomestead I did see the video, thank you!....I am wondering if there was much of a difference in temperature between the bottom of the cold air drop barrel and the vent in the bed? I am thinking that we may do a large loop like the greenhouse in the snow design, but add in the cold air drops since that makes a lot of sense to me. It should work to hook those into the large geothermal loop, shouldn't it? The cold air would heat up totally before it comes back into the greenhouse. I'd appreciate your thoughts on this:) Also, Once your greenhouse really gets rolling, won't the barrels full of water eventually become ineffective because of the plants blocking the sunlight to the barrels? I like the idea of this, but wonder about its effectiveness.... Great for water harvesting, though. I am just trying to think this all through before we take the leap:)
Wondering if there is any way to measure how much warmer the cold air drop keeps the greenhouse? If the added expense/labor offsets energy cost of supplemental heat?
I love that you guys did this and are showing the process, but as a machine operator I have to mention that you were super not legal for OSHA standards getting in that trench. 4' hole max without shoring, that is how people die. Mainly saying this for anyone else watching so they stay safe.
@mantihomestead I get it. I believe as the owner the OSHA regs may not apply to you guys but it's still good practice. Safety first! Keep doing awesome things! 😊
@@Azariah-pv2xvI care about going home at the end of the day to see my family, so I don't hang out in deep holes without protection. Smart people care about self preservation and safety. "There are bold mushroom hunters, and there are old mushroom hunters. But there are no bold old mushroom hunters".
Science class! 😊. Phenomenal
It is! We are learning so much along the way, but thanks for the kind words!
Looking forward to seeing more of the construction part
Those 8 tubes are just naturally drawn air movement? Have you measured intake and output air temp changes yet? What about the drop in humidity? I’m impressed.
Hello. Yes they are just naturally drawn. We are pushing for full off grid, I’ve been pulling data and will keep posting. Hope it helps.
@@mantihomestead I will keep watching for updates. I am looking to do something somewhat similar in a High Tunnel. 39 degrees latitude here in USA. Good luck.
Great project, I'd really like to see more about how you are drawing the warmed air up through the pipes you buried in the other video. You just doing a plywood plenum or manifold or whatever? This video here showed something I had not seen before, the cold sink with the pipes angled slightly up into the grow bed. Really great idea.
Thanks!!!
Did you just guess the length to go underground 20' and that'd it work? I would think you'd want to go much further to get more of the ground heat but if that works that's awesome!
@mantihomestead How are you keeping the cold sink pipes from collecting dirt, and how are you cleaning them? Is it simply wide enough that you can vacuum it out with a shop vacuum as needed?
Yeah they get mulch and stuff knocked in them but I haven’t had to clean them still after a year. I’d just send me kids down if needed:)
@@mantihomestead Is all ventilation passive without power? How do you move the air in the long lateral tubes? I didn't see any fans on your other videos.
Do you think that a cold air drop would be beneficial with a geothermal setup like the "greenhouse in the snow"? In your estimation, has this been a good design feature for your greenhouse?
That is a great question. Have you seen the video where I threw the smoke bomb in the cold air drop? I’ll have to go back and see which one it was. But it shows you the air movement. It’s hard for me to tell how much that does or doesn’t help. I think it definitely contributes to getting the coldest air off of the bottom of the greenhouse. But if you do have the true “greenhouse in the snow” the fans and geothermal probably will take care of a lot of that. I need to get a better thermal gone so I can get an idea of the airflow temperatures. But if you can go watch that video with a smoke bomb.
@@mantihomestead I did see the video, thank you!....I am wondering if there was much of a difference in temperature between the bottom of the cold air drop barrel and the vent in the bed? I am thinking that we may do a large loop like the greenhouse in the snow design, but add in the cold air drops since that makes a lot of sense to me. It should work to hook those into the large geothermal loop, shouldn't it? The cold air would heat up totally before it comes back into the greenhouse. I'd appreciate your thoughts on this:) Also, Once your greenhouse really gets rolling, won't the barrels full of water eventually become ineffective because of the plants blocking the sunlight to the barrels? I like the idea of this, but wonder about its effectiveness.... Great for water harvesting, though. I am just trying to think this all through before we take the leap:)
Wondering if there is any way to measure how much warmer the cold air drop keeps the greenhouse? If the added expense/labor offsets energy cost of supplemental heat?
I love that you guys did this and are showing the process, but as a machine operator I have to mention that you were super not legal for OSHA standards getting in that trench. 4' hole max without shoring, that is how people die. Mainly saying this for anyone else watching so they stay safe.
Yeah, those are great points! We are always just a little little bit of a hot mess :-)
@mantihomestead I get it. I believe as the owner the OSHA regs may not apply to you guys but it's still good practice. Safety first! Keep doing awesome things! 😊
@@growingpawpaw I don't care about OSHA
@@Azariah-pv2xvI care about going home at the end of the day to see my family, so I don't hang out in deep holes without protection. Smart people care about self preservation and safety. "There are bold mushroom hunters, and there are old mushroom hunters. But there are no bold old mushroom hunters".
Soil type dictates trench boxes but common sense
Safety 1st
Safety last
Safety all the time
Could be a good mouse trap but a little smelly
Ha!!