DIY Geothermal Greenhouse Pt 8: POLY FILM INSTALLATION
Vložit
- čas přidán 21. 08. 2024
- #117 After starting to build our DIY EMT electrical metal conduit (1.25") greenhouse two years ago, we are finally completing this project.
We readily admit we are not experts at this (we are not engineers, greenhouse experts, or thermodynamic scientists), but a family doing our best to do it all ourselves and install based on all that we have read or watched on CZcams (Don't believe everything you see on the internet) to date and in line with our limited budget. Based on comments on previous videos, we already know some things should be done differently. Hopefully, it still works well enough, even if not optimally. We plan to share the results regardless.
In this video we install all of the spring lock (wiggle wire) base and greenhouse poly film. Greenhouse film installation was a bit more challenging than we anticipated. We also installed the Fantech FG6XL fans and connecting pipes/ducts for the earth battery system.
Background on the project: Our farm homestead came with metal pipes in the ground from a former 16' x 50' hoop house. It also had water lines run from the farm well (which also needed to be restored) and a 60 amp electric service. In the first video we installed the 1.25" EMT conduit that serves as the frame. In future videos we'll frame the end walls, run electric, and get the plastic cover on in time for winter.
Each rib or section of the greenhouse consists of three 10' pipes, no cutting. They are joined by stock EMT connectors. The two outer angles are 117.3. The ridge angle is 125.4. Sides are 6' tall. Just over 10' to the ridge. 16' wide.
Ultimately, this will be a double wall plastic film greenhouse.
+AMDG
Music
Andy G. Cohen: "A Human Being" goo.gl/XDULHz
Jason Shaw: "Landra's Dream" goo.gl/pi68XB
#greenhouse
#passivesolargreenhouse
#emtgreenhouse
#earthbattery
I binge watched the whole series. AWESOME! Thank you.
Thank you! And God bless!
Hi there: I’m currently working on my Certification in Renewable Energy, with a focus on geothermal energy. Your family’s project is very inspiring as I am considering taking on a geothermal heated greenhouse for local and Indigenous communities here in Alberta, Canada. Your videos will be part of my research for my third course paper. I love the way you handled the safety hazard with your youngest son. Stay safe and let’s keep in touch.
Realy nice to see father and young sons to work together on a build job.
👋 if your building up in Canada, i would suggest doing a Walipini instead. Save & use all the earth. Adding geo-thermal to a walipini you can almost grow tropicals.😊
You guys did a fantastic job. You have a lot of motivation and vision. Good to see the geothermal working!
Living the dream! Sending good vibes from the UK. I'm levelling the ground for my polytunnel today.
Ah! You used the vinyl coated wire! Excellent!
You guys are doing a great job. 111 degrees! It's amazing how easily you can create an oven. Since you need good air exchange for photosynthesis (to get CO2 in, oxygen out) I'd consider a permanent exhaust fan on one end and passive intake louvers on the other. You can spend lots of time deciding on the time cycles for exhaust vs. earth battery, and maybe only let your exhaust fan trigger via high temp setting on a thermostat. You can easily cook everything living in there on one bad day of forgetting to go out and open your doors. Figure out your prevailing wind direction and let that dictate which end is which. Not sure if you are using this as winter only greenhouse or trying to utilize it through the summer. Plants actually want lots of airflow, so a series of fans inside will really make things thrive. Dancing plants are happy plants, and they will tolerate the heat and any humidity issues you have better with airflow. Stale air sitting at the surface of a plant suffocates it. We found our circulation fans to be the most helpful in equalizing temps, pollinating self pollinators, and chasing the hot air up and out of our vents. Hope I'm not being too nosy, but these are all lessons we learned just a year ago.
Thank you for taking the time to write and share all of that information. This is one off the things we love about CZcams. We are planning to install thermostatically controlled fans eventually - just a matter of budget and time. But you're absolutely right - it gets hot in there quickly and it would only take forgetting to open the doors one hot day to kill every plant in there. This project has been (and will continue to be) because there is so much to learn.
great project for you and your family, an experience they will never forget and will help them become better parents and citizens. Thank you for sharing.
Thank you for watching and taking the time to share your kind words. We certainly hope what you suggest is true!
Teach them how to use hand tools and power tools (safely, of course) when they’re young; they'll never forget. They will carry with them through life the skills you taught them. A valuable legacy
I used to build green houses, Where you are at i think having white plastic would be a great help in reflecting the sun. having at least 2 layers is important because plastic by itself is a heat loser. As far as connecting different air chambers of the green house with pressure air, I used flexible dryer ducting, it doesnt last for ever but its cheap.
Thank you so much for making this series. I’m a little south of you I think, around Fayetteville and plan on building a greenhouse just like yours. Please add test videos as time goes by showing how effective or not the geothermal system ends up being. Thanks again man!
Thanks for watching and taking the time to comment. We will definitely be adding updates as we go and sharing data. My concern at this point is that the earth battery system we installed is going to be undersized. By that I mean, even bigger manifold or trunk pipes, with larger fans pushing more air faster. At some point we may see if there would be value to adding additional fans on the system which would be easy enough with a y connector.
Pushing massive amounts of air into a few large inlet manifolds is not the way to go. The higher the flow, the higher the loss. You`ll pay a lot for high capacity manifolds, typically around $360 for a 20ft length of 18" ADS.
Looks like everything is coming together nicely. Soon!
Fill the space between the layers with either argon gas or if thats too expensive use CO2 (use dry ice as it is generally the cheapest and easiest to handle form of CO2), both will greatly increase the insulation on your greenhouse.
Use dryer vent tubing to make the jumps with the exhaust plate door removed use the flat piece to duct tape to the interior walls.
Yes! That's it - dryer vent made sense, but I was concerned about the wire and securing it to the film. Perfect DIY solution. Thank you!
Fasten a 4" inch Air Vent Duct Connector Flange ($8 on Amazon) to the film with double sided exterior carpet tape. Then the semi-rigid aluminum flex hose clamps to that. Don't use the foil-paper hose, it won't last long.
Thank you for sharing your knowledge.
Wow, things really came together. Would be really interesting to see what things end up costing when all said and done. Amazing the temperature seeing inside vs out. Great work!!
Funny you should mention that, working on the spreadsheet this week. I think we did it about as inexpensively as a greenhouse this size could be done, but I fear it will still be a fairly large number when it's all said and done.
WOW WOW WOW Brother that looks so good!! Thanks so much for letting us be a small part it's a true blessing. I know how much more work adding a camera is. Thanks for doing that. This has been a true blessing seeing you guys make this greenhouse. One thing if you do not mind. I find it so hard to hear what your saying. From what it looks like to me when your editing your turning do the audio of the raw video. It's not I am at all trying to be a ungrateful person at all. Hope I am not upping you saying that. If there is not a thing you can do about then so it is. I will keep looking at all the videos you guys post. Thanks one more time. Your a true blessing to me.
One more thing. If you guys would not mind adding my wife and I into your prayer list that would rock. We are dealing with a lot of heath and finances troubles do to my health. Hard to keep food in the house and pay for a; the new bills. My name is Bobby and my wife's is Melony. Thanks so much !!
Keep the videos going. God Bless guys..
First, thank you for the privilege of a prayer request. Please be assured of our prayers for you and your intentions. We know well the challenges of health and work and bills, in our own family, and close friends. These are difficult times for many. May God grant you peace, healing, and an abundance of grace to persevere.
Thanks for the feedback about the sound. This continues to be a mystery for us. We've had more than a couple of people say they have issues with the sound, but others comment on the same video saying that it is fine. When we're editing, it actually sounds loud and we have to turn down the computer - as was the case on this one. I've heard some people say it might be an issue with browsers, but we're unable to replicate the issue on our end. Do you have this problem with any other creator's videos? Or just ours?
Blessings to you and yours!
Thank you !! Just yours brother. I look at about 1 hr a day worth of videos. Just yours is low. I have to trun it up to 100% get head phones to make out what your saying. I have tryed on my wifes cell phone and on her computer and it's still low. I know when I make a video I have to turn down the sound from the raw video.
As I was saying if you can't fix it not a big deal. I will just brake out the head phones. God Bless
Even as a firm, atheist, non-believer, your words touched me. May your God be with you all! And all the best to all of you, thank you for all the great videos and best of luck with your financial problems. In the end it will all come together. Keep the faith! Cheers
Wow I do not know what to say but THANK YOU!!
Bobby, you don't really need to say anything... Just keep on being the good honest man I'm sure you are given what you've written here and remember: never be ashamed to reach out for help in difficult times. We've all been there.
You make it look easy... Great helpers too !
They are - we're blessed to have a hard working family.
I love your videos, story, and adventure your family is on keep it up as you are inspirational and a shining light of honesty and decency i look for. Cheers,
Thank you - very kind of you to say.
Excellent job..... I like to make one just like your but with metal roof and tent material around.
I watched a video of a small microgreen operator in Canada, and he was saying it doesnt really matter what u use for soil, but he said you must feed the soil with nutrients etc and that what makes things grow big and healthy as tasty
Bikerchic
There's something to it. I grow in soil that I ammend with manure, hard wood sawdust, and lime. I have it tested at the UofA. It really took off producing when I got an injector for the fertilizer into the drip tape. Now I run about 50 gallons of concentrate a week. Less when the crops are small.
If you had left gaps between some sections of the metal rails then air could pass between the sections. Great series, I'll definitely be looking to make something similar in the next few years.
Can't believe we didn't think of that. It would have been a very clean and elegant solution to the problem for at least the top and sidewalls. Thanks for taking the time to share the idea. We'll remember it for the next greenhouse! Best wishes to you if you build on in the future.
If you leave a gap like that, would it give the plastic a place to start a rip on the corners of the channel or end of wire if the wind picks up and starts flapping it? I'm going to be building a green house next year so I'm doing my research now. Let me know if you do this or if anyone has, and how it works out please
Great video series, well put and great inspiration.
I think you guys did a great job, thanks for the videos!
That was fantastic! I enjoyed the entire build:)
Thank you - we really appreciate the feedback!
Get blower motors from out of cars at salvage yard. I have seen DIY versions on YT for the jumpers you were querying about. Greenhouse is looking good.
Thanks!
With the changes it's looking great. I am very interested to see how the earth battery works over the summer.
Thanks. As to how it works in the summer, we're really interested as well. Of course, as we've posted videos about this project, many folks with far more knowledge than us have shared thoughts. I am now concerned that the whole system will be a bit undersized. We built it based of what we could find at the time and wish he had found more of this information sooner. Still, we would have been limited by time and budget. So we'll see what it does and share the results!
little bit perfectionist? nice one. that thing is looking like a work of art! keep it up!
😂 BUSTED. Yes, we're a family of perfectionists. A blessing and a curse. Thanks!
Y'all are awesome :) Nice greenhouse!! Thank you for your time and for sharing with us!
Thank you!
we used a coffee can with dryer vent hose .the can was flanged on one end and mounted on plywood and then another piece of plwpod between the plastic and then the two pieces bolted together .works well
Thank you for taking the time to share this idea - folks offering suggestions is really helpful to get a sense of how other solve this problem.
Congratulations on a job well done. Looks great.
Thanks, Scott!
An ounce of prevention, is worth a pound of cure!...Phil sand, you Dig!
I never knew Phil Dumphy was into gardening.... lol
Thank you for sharing another informative video!! Keep up the great work.
I love you dog! Nice build.
Yes, I am a firm believer in safety. I have seen the whining after someone gas been injured from easily preventable things.
I'm surprised by the low temp at the exit. The earth is a consistent 55deg below a certain depth depending on a few variables. The low temp is fine for trying to keep the house from overheating during the summer. I'd be most curious about how it helps keep the temp up during the winter.... based on the 55deg subsurface temp this should keep plants alive during the winter and cold weather crops like broccoli should do great.
I think those unions on the rafters are going to destroy the cover within 2 years. But I’m probably wrong. Luca. Ps cut a 1 inch section off rubber boot and use it as a spacer
I've been toying with the idea of another layer, at about 1 foot, that is the exhaust ducting from a rocket stove fed and exhausted from the outside. My thinking is that the greenhouse manages to stay above freezing during the day just fine, but may drop off at night. If I could bank the soil, down the center of the green house, with an hour of rocket stove use, that may get me through the night.
Great job you guys! It looks amazing.
Thank you - we're pretty psyched about it!
If you haven't already delt with the jumper hoses for inflation. Sealing the same way your sink plug does should work also gives you the option to redirect if you ever wanted to extend at a later date
One more thing... you may want to instal some collar ties.. it may be fine for the short term but if there is any snowfall, heavy wind or if your hanging anything off the center 2x4 you will be happy for the extra support and rigidity.
Thanks! We were thinking the same thing. Believe it or not those pipe will hold our weight, but ties across would make it even stronger. They'll show up in a video eventually.
Hearing protection as well. Take it from an old guy that your ears don't like loud noise. Drills are around 99 dbs average. That will damage your hearing over time and you will be reading lips to cover hearing loss.
Absolutely. After years hunting & just recreational shooting of shotguns when I was little to about 20 or so, concerts my 20s, power equipment on construction sites - my hearing is terrible in my 60s. Ear & eye protection a must to protect the only ears and eyes you're ever going to have.
The noise of a cordless drill on occasion will not hurt your hearing. Hearing protection for that us overdone.
hey, probably too late now, but on endwalls, try screwing the plastic between battens on the excess plastic, so you can tigthen it acrosss an entire plane of pull, rather than by the handful!
2 suggestions; "Up the speak relative to other sounds on channnel"; wheelbarrow may pass the doors, but how about tractor width? Bringing in compost for example? You're way ahead of me, still trying to get my green house working. Hope u get it working as intended, greetings from holland.
Thanks, for the feedback. Guess we'll be upping the voice volume significantly in future videos! No tractors going into this greenhouse. We decided to go for a more fixed structure on this one. Holland - cool, greetings back!
What a beautiful greenhouse you've built. Excellent job. Is it a kit that you purchased or is it your own design? You may not have been greenhouse and geothermal experts before,I would say you are now. Great job! Hats off to the wife and kids as well.
Thank you for all of your kind words.! It is not a kit, we designed it ourselves, mostly from materials purchased at Lowe's Home Improvement. We still wouldn't consider ourselves experts, but we certainly learned (and are continuing to learn) a great deal from the process!
Great job and info🤗thank you 👍👏💖💨💫
Thanks for the support!
You might look into tank bulkheads ($6-$8) as connectors and plastic hose for the plastic film.
Thanks!
I’m not sure why you would ever need to pull up the sides with the earth battery providing the means to condition the air sufficiently. Good job!
Looks great! Jealous. 😎😃
Thank you!
Use a electric conduit pvc box nut ( connects pvc outlet box to wire conduit ) and use 2 rubber o rings for the blow up jumpers for inflation of the plastic they sell all sizes
See if you can get a couple of cheap Bulkhead Tank Fittings to join with flexible pipe to bridge the air flow?
Why not put a layer of greenhouse plastic on the inside of your end wall 4" x 4" studs? Then you wouldn't have to run your $30 "jumpers" to these areas. You'd have a constant 3 1/2" dead air space between the layers.
We did consider that, but we think we're going to be attaching a number of things to the end walls on the inside. If we don't, your suggestion may still happen. Thanks
you can build a air cooling system with water & coco husk / swamp cooler in winter just pour hot water
I think holes drilled in framing could share air.
Where did you get fan for the six inch pipe? Watched all you vids look gray. Helped me avoid some mistakes.
Thanks
Ken
have you been happy with the earth battery in the winter and how cold are you winters
Exactly Precisely what greenhouse plastic was used ? I purchased some supposedly "clear" plastic and it came opaque white
We ordered from Greenhouse Megastore. 6 mil.
Love it ! From Nepal🙏
Amazing work. You're videos are inspirational. Great job/dedication and i can't wait to see more. 👍👌✌
I'm two yeas late to the project, but is there any follow up date? Actual practical results over two years? I need to do this in the desert(ish) area, so I really need to know. Thank you very much.
Great video brother, What kind of temps did you end up getting?
If the air is only recirculating vs intaking... wont the plants get oxygen depleted? Most geothermal greenhouse setups I've seen pull outdoor air through the ground into the greenhouse to get fresh 65 degree air.
For the jumper, you could pop rivet your wiggle wire base to the perimeter of a ceiling collar base for air tight fit, install a collar then jumper with something as cheap as dryer hose. One dryer hose should get you multiple jumpers.
Here are the components from Home Depot.
www.homedepot.com/p/4-in-Ceiling-Collar-CC4/100124671
www.homedepot.com/p/4-in-Starting-Collar-Take-Off-Snap-Together-SCF4/100396965
www.homedepot.com/p/GE-Flexible-Metal-Dryer-Duct-PM08X10085DS/205472610
Hey, great work, SUPER helpful amount of information thank you for sharing. Question for you though, what was the deciding factor for going with poly film instead of say, clear corrugated polycarbonate sheets? I'm weighing options for a similar project.
dont apologize, haters gonna hate.
lol safety Sally
Fantastic job! How many sticks of emt did you end up using?
Where did you get the wiggle wire and what size tubing will it work on? All the sites I visited used channel instead of tubing. Is the wiggle wire the used for channel or tubing?
Wow, looks great. What size conduit did you use? looks like 2inch.
1.25" Thanks!
Hi, I was wondering where did you buy your double channel wiggle wires from?? I can't seem to find them anywhere.
Wouldn’t buying a simple 3D printer be a good solution for the connectors? Cheapest ones would run you like $200 (for the brilliant ender3 model for example) and its more than capable of something like that.
Congratulations! It looks grand! Have you checked the temperature of the air coming out of the ground yet? Where did you get your fans?
Thank you! We've not really gotten around to collecting data yet, but promise to share as soon as we get enough to be relevant. We bought the fans from AC Wholesalers (www.acwholesalers.com) as they seemed to be the best price we could find and had free shipping.
The temperature coming out of the tubes will be the same as the ground temperature. To be sure all of the tubing is active you need to increase the airflow so the air coming out is above the ground temperature. I dont think you`ll have nearly enough fan power to achieve it. The long runs of 6" pipe (and bends) from the fans will reduce the airflow before it gets to the underground tubing. What is left (assuming the system is perfectly balanced) will be equally shared between the underground tubes, not forgetting they are heavily corrugated and subject to higher losses than smooth tubing. Your fan spec gives a maximum flow of 483cfm at 0 inch wc. Optimistically, you may have 50cfm making out of each underground tube but its likely to be much less. Working on the assumption of 600cfm total you`ll put all the greenhouse air underground 5.8x per hour. It wont be enough to cool the greenhouse even at the start of the season when the mass temperature is at its coldest aka the largest air/mass temperature difference. As the mass warms up through the season, the temperature difference reduces and you need more airflow.
On a different note, i would use a differential pressure switch and a simple flap valve for the double poly inflation blower, it`ll reduce the running cost by upto 80% and extend the life of the blower considerably ;)
JohnGuest45 If we added another fan to each pipe, how much do you think it would help?
It wouldnt be worth the expense because the issue isnt the amount of flow, its the resistance. Doubling the airflow will result in a 4-fold increase in losses. It would help to know the dimensions of the greenhouse and the lengths of tubes you installed ;)
After a quick search i find the greenhouse is 50ft x16ft with 6,144 cubic foot volume. I guess the excavation is around 46ft x 12ft x 4ft deep making the individual tube length somewhere around 44ft long.
Roughly how much did you spend on material
The grand total for everything (down to the boxes of screws and door hinges) was $3,900. That's everything. With our son's FFA grant of $1,000, that brought our cost down to $2,900 - what we think is a relative bargain for the size and quality of the greenhouse.
Very nice build. What is the C channel bar and spring lock for hold the poly film do you use? Is there name I can find it at Home Depot or amazon or online? Thanks
Online at www.greenhousemegastore.com/product/spring-lock-base/s
St. Isidore's Farm thanks :)
If you are shooting for the ability to roll up the side curtains, skip the fan-tube extensions on the sides and ends. Just go for the pillow fans on the canopy. We run 4 small fans on our units. One in each corner. The fans come from Granger or Farmtek and run only about 30 bucks a pop. The installation kit with the stand-offs that fit between the plastic layers is another 12 to 20 bucks each. The nice thing is that those are pretty much a one-time purchase. The fans however seem to last only a couple years. We keep a few spares on hand for replacements. Even if you opt for the high-dollar 130 dollar units, they fail just as often. Always good to have a spare if ya can muster it. As for the extra bits of plastic, DON'T trim it off!!! If you ever hope to re-stretch, or repair a damaged portion, you will hate hate hate yourselves for cutting that stuff away! We roll the extra bits up with a lathe board and either trim nail or screw the board down to the wood frame. Might look a little tacky, but it's a godsend when you need to make repairs.
Excellent! Thank you for all of this feedback and information!
Construct a simple flap (one way) valve to seal the cavity and control the inflation blower with a dwyer differential pressure switch. The sensing tube from the switch monitors the cavity pressure and fires up the blower when it falls below the setpoint. The flap valve prevents the air escaping when the blower is off. The blower might run for 2 hours out of every 24 depending on how well the covering is sealed. The power savings alone will pay for the switch ($20), the blower will likely outlive the greenhouse. My inflation system delivers a meager 2cfm controlled by 2 differential pressure switches. The covering (3 layers, 2 cavities) is heat sealed so there are no air leaks.
With regard to the pressure switch, if one of these would work, which would you recommend for this application? www.amazon.com/Dwyer-Adjustable-Differential-Pressure-Connection/dp/B00ATGAPD2/ref=sr_1_1?ie=UTF8&qid=1524015960&sr=8-1&keywords=dwyer+differential+pressure+switch#customerReviews
The ADPS-04-2-N is a good bet, it covers a range of 0.12" -1.6" wc. The typical pressure for inflated poly is 0.2" - 0.25" wc. I use the 03-2-N`s (0.2" - 2") but my covering is different and uses much higher pressures, typically 0.5"-1.5" wc.
Excellent! Thank you. We installed the inflation fan last night and quickly realized the power of pneumatics. Without a pressure release, the film actually started pulling so hard on one of the spring lock bases that it sheared the heads off five screws. Crazy. So this switch will be excellent vs. cutting a hole in the film to release pressure and running the fan 24/7. Thank you again for this information.
what size conduit did you use? I may have missed that part
4 tec screws and buct tape 5$ spend the rest on seeds.. Haha
you dont show the framing, metal to wood?
Not sure we understand the question. We show everything. The end walls were made of timber. The internal ribs of EMT conduit. Hope that helps. God bless!
Dryer house.
sorry if i'm spamming you. that massive fan, push that air through your twinskin? then vent it back through the geothermal? the temp differential would really train some heat in that dirt, and save another fan!
Not sure I understand this question - sorry!
you need a blower to fill the twinskin. yes? so use your huge cubic meter geothermal fan and pump the air through the twinskin. that internal layer would be relatively hot in the day, yes? then vent that outlet air through your hot air intake into geothermal tubes. extra heat to store underground! it would also moderate the temp between the skins, which would increase their insulation factor?!! at the moment your pulling air from the insulated cavity within the greenhouse, and youd save on blower electricity costs using one large blower for everything? Just snow-balling, wasn't trying to confuse anyone.
The cavity must be filled with still air to have any insulation value ;) The other issue is the inside surfaces of the poly will soon pick up dirt and then you`ll have no insulation and less light ;)
Gee JohnGuest45 should have figured that! of course! You work with geoairtransfer or thermal betteries? You sure seem to know a lot on this subject. trying to figure out feasibility on a 450m2 house. it's fun, yes?!
I have a system that works FOR me but i dont work WITH it ;) The correct term is Subterranean Heating and Cooling System (SHCS), if you see it called something else, the design is likely to be suspect ;) With a house that size you only want to be installing the tubing once, digging it all back up would be no fun at all ;)
MASSIVE CHEMTRAIL SPRAYING AT 5:15
Failure to plan is planning to fail, or make it up any old how is your way....
Thanks for taking the time to write something, but your comments don't really make sense. God bless!
My 2 cents. The wires that run the length to support crops will pull the end walls together. Diagonal bracing with steel shapes under compression will solve that. HGI has jumpers as cheap as $17. Last, ropes crisscross over the top will save you heart ache. I guess that's 3 cents.
Thank you for taking the time to write and offer suggestions. When you say ropes crisscross over the top - what do you mean? What would they serve to do or prevent? Thanks!
St. Isidore's Farm
The ropes go from the anchors on both hoops on one bay over the top crossing and down to the anchors on the opposite side. The number of bays varies depending on the length of the house and the strength of the wind. They keep the plastic from lifting off of the framing and flapping until something gives. Good job, can't wait to see the crops.
Excellent, thanks!
So do seasons matter for growing plants in a greenhouse? I don’t know much about plants but I’m guessing they run their clocks off of day length, not temperature, so can you start seeds in April that should’ve been started a while ago?
Depends. Some folks use greenhouses to grow things year round. Depending on your climate that means supplemental heat and then it's a cost benefit analysis depending on the energy source used. A lot of people use them as we will to get an early start on garden plants. We're behind this year on the completed build due to the weather, but we'll still get a jump on things like tomatoes and peppers. Then we can extend the season into the fall early winter as well.
St. Isidore's Farm Will you be able to grow non winter plants during winter? (Like tomatoes or something)
We could if we provided a lot of supplemental heat and light. Don't know that the energy costs would be worth it. But things like broccoli would be a different story.
6:30 :)
Next time cover the end walls first, you understand
Wisdom on the over hang (use poly tape once your sure it good, before it frays)
PVC drain like you 4" just no holes
And next to not near as tight on the top cover
Just saying 😏
*sometimes they call it sump pump piping
There was no "father fail". The boy was not in danger. I just thought how good it is for young boys to learn such things and learn how to work. That's the opposite of "father fail".
Instead of the expense of fans and jumper hoses to inflate the two layers, why not simply run interior spacers between the two layers on the inside edge of your end-walls using swimming pool noodles? They won't break down from sun exposure and won't retain moisture themselves because they are closed-cell impermeable foam, so they shouldn't promote any sort of algae or mold in and of themselves. They can be zip-tied to the poles through the interior layer or siliconed or glued on each side between both layers down the length of the greenhouse, preferably positioned at the peak and corner edges, and then can be run from peak to edge along each or every other cross-member. This places a consistent physical air space between the layers and costs pennies compared to the expense of fans and duct work. This method also has the added benefits of drawing no additional electrical power and being easily replaceable whenever needed, which shouldn't be any more often than replacing the plastic itself, but I suspect the noodles will outlast the plastic by a factor of three or more.
Having a positive air pressure in the cavity increases the load capacity of the covering, The typical inflation pressure used in double skin hoophouses will support 1.3lbs psf, thats just the air pressure. I use a different type of inflated cover and the air in that will support 10.4lbs psf Its surprising how powerful a little air pressure can be.
Who is the artist for the music?
Andy G. Cohen: "A Human Being" goo.gl/XDULHz
Jason Shaw: "Landra's Dream" goo.gl/pi68XB
I'm new to you channel..
So you might have already addressed this..
Won't your plants develope better in your greenhouse
With a carbon dioxide source..
I'm thinking maybe rabbits..
Rabbit meat source of income..
Heat generators..for nights..
Fertilizer...
?????????
Good question. As we said, we are not greenhouse experts, so a lot of this is figuring it out as we go and documenting the process, good or bad. My sense is that our greenhouse gets lot of air movement, especially during the heat of the day when we open it up and use fans to pull in air. Don't know that I've ever hear others talk about that being an issue.
Jim, you just invited the fox into the hen house. Rabbits are bad juju in a greenhouse.
karlInSanDiego
can you expand on your statement..
Rabbits eat your plants. They are unwelcome in greenhouses. There is plenty of CO2 in the air. You just need to exchange the greenhouse air with the surrounding air from outside.
karlInSanDiego
I was talking about caged rabbits...
As a meat supply..
Plus heat at night..
You mentioned there is enough CO2 in the air
What is the source of the CO2 you speak of..
I know of mammals breathing..
Decomposition of plant life..
And i understand plants take in CO2 and produce oxygen..
But what sources are you speaking of.. that I'm missing..
STOP BEING CHEAP. IF IT AIN'T BROKE DON'T FIX IT. BUY WHAT YOU NEED TO DO IT RIGHT. IT'S A VERY NICE GREEN HOUSE. DON'T MESS IT UP BUY BEING CHEAP. TAKE YOUR TIME AND DO IT RIGHT.
Isn't being cheap a relative thing? Some folks have criticized us for being "wealthy" and even being able to build a greenhouse. We'd like to think we took our time and did it as right as we could. God bless!
heating pipe conduit
Dude....Your information is great ,Howe’s,You talk waaay too much!! You could maybe edit 3/4 and still say it all.
We don't ever really know how to respond to comments like this. Understanding that it is likely meant as constructive feedback, it's still odd. We're just putting together videos to document one of many projects on our farm. If we don't put a lot of information in the videos, people ask a lot of questions in the comments. But if you talk too much, folks like yourself complain. At the end of the day it's free content and information. Shouldn't the response just be, "Thanks," and move on? Or is it that you were just personally annoyed and needed to let us know?
Not sure they are deep enough
Your volume is bad