The Forestry Forum is sponsored in part by:

Draw for handbuilt acoustic guitar get your name in


Forestry Forum
Sponsored by:


TimberKing Sawmills



Toll Free 1-800-582-0470

LogRite Tools



Norwood Industries Inc.


Sawmill & Woodlot Magazine



Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL


Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades

Turbosawmill

Sawmill Exchange

BRUTE FORCE Authorized Dealer

Woodshax Outdoor Vending Solutions

FARMA


Council Tool

Baker Products

ECHO-Bearcat



Author Topic: starting a HF Greenhouse  (Read 1594 times)

0 Members and 1 Guest are viewing this topic.

Online DDW_OR

  • Senior Member
  • ****
  • Posts: 892
  • Age: 49
  • Location: Glendale, Oregon
  • Gender: Male
    • Share Post
starting a HF Greenhouse
« on: August 23, 2017, 02:53:06 AM »
I got two of the 10x12 Harbor Freight green houses i am going to put back to back.
remove the three center panels from each, then use 5 of the 6 panels to make the resulting green house 2 feet wider in the center, so 26 feet long by 10 feet wide.
i will be adding two 55 gallon barrows in the center section.

digging a pit 15x32, then make a foundation out of Rail Road Ties in the pit 26x10.
then fill the inside and outside of the foundation with good soil.
then build the greenhouses.
will add the Modifications i saw on Youtube
Tape the panels
add cross braces
screw the panels to the frame





plan on growing Tomatoes, green peppers, green beans, peas, semi dwarf Oranges, semi dwarf Tangerines, in the greenhouse.
we are growing Zone 7. the record recorded low was -1F

using an OWB for winter heating.

may even put in a 3 person hot tub. have several double pane windows

Mod - 09/05/2017
 historical Temps

 
Multitek 1610EZ, TimberKing 2000 & Talon Sharpener,
"let the machines do the work"

Offline fishpharmer

  • Senior Member x2
  • *****
  • Posts: 4675
  • Age: 51
  • Location: Mississippi
  • Gender: Male
    • Share Post
Re: starting a HF Greenhouse
« Reply #1 on: August 23, 2017, 07:56:23 AM »
Interesting, I look foward to reading more about your greenhouse project.
Built my own band mill with the help of Forestry Forum. 
Lucas 618 with 50" slabber
WoodmizerLT-40 Super Hydraulic
Deere 5065E mfwd w/553 loader

The reason a lot of people do not recognize opportunity is because it usually goes around wearing overalls looking like hard work. --Tom A. Edison

Offline Ron Wenrich

  • Forester
  • Administrator
  • *****
  • Posts: 13531
  • Age: 69
  • Location: Jonestown, PA
  • Gender: Male
    • Share Post
Re: starting a HF Greenhouse
« Reply #2 on: August 23, 2017, 11:15:17 AM »
I've been doing hydroponics for the past several years.  I never got into the fish thing.  I have had good success with peppers of all types, tomatoes, cucumbers, zucchini, kale, and lettuce.  I can also grow a few cantaloupe.  The one problem I do run into is pollination.  But, that is more with the vine crops. 

I do most of mine in 5 gal containers, and recirculate the water.  I also have a space for 3 inch pots that are placed in a 4x4 plastic fence post.  I use that for things like lettuce, kale, and onions.  My medium is sawdust.  Seems to work pretty good for me. 

The other thing you'll probably want is grow lights.  I have them on a timer, and use them when the days get shorter than 12 hrs daylight. 

I'm not using any heat source.  I've been going to about Thanksgiving until everything gives up.  October may be spotty, as for yield.  I can start again in the beginning of March with the cool weather plants.  I also installed an attic fan with a thermostat for ventilation.  My construction is just 2x4s and sheet plastic. 
Never under estimate the power of stupid people in large groups.

Offline PineNut

  • Senior Member
  • ****
  • Posts: 710
  • Age: 80
  • Location: Lincoln Co, SW MS
  • Gender: Male
  • I'm new!
    • Share Post
Re: starting a HF Greenhouse
« Reply #3 on: August 23, 2017, 02:41:04 PM »
I have two green houses. Each one consist of two of the HF greenhouses. I did not do anything special with mine, just assembled them end to end and left out the panels in the center. That gives me a door on each end which is sufficient for ventilation. The only thing I did not do that I should have is to close off the top vents permanently. I heat mine with OWF and use supplemental electric heat if necessary. I use mine only for over wintering plants and do not try to keep it at a very warm temperature, usually at the mid 30's or above.  With my location in SW Mississippi, I don't need heat very much. I did manage to purchase them using their 20% off coupon, getting someone else to get one for me. Only problem is after about 10 years, there are holes that are appearing in the outer surface of the panels on the roof on my older one.

Online DDW_OR

  • Senior Member
  • ****
  • Posts: 892
  • Age: 49
  • Location: Glendale, Oregon
  • Gender: Male
    • Share Post
Re: starting a HF Greenhouse
« Reply #4 on: August 23, 2017, 04:01:10 PM »
I have two green houses. Each one consist of two of the HF greenhouses. I did not do anything special with mine, just assembled them end to end and left out the panels in the center. That gives me a door on each end which is sufficient for ventilation. The only thing I did not do that I should have is to close off the top vents permanently. I heat mine with OWF and use supplemental electric heat if necessary. I use mine only for over wintering plants and do not try to keep it at a very warm temperature, usually at the mid 30's or above.  With my location in SW Mississippi, I don't need heat very much. I did manage to purchase them using their 20% off coupon, getting someone else to get one for me. Only problem is after about 10 years, there are holes that are appearing in the outer surface of the panels on the roof on my older one.

any photos?

here is how i plan to layout the interior
the shaded areas along the walls are benches 18 to 24 inch height, 24 inch width
center shaded area is floor growing; either in the dirt or in 5 gallon buckets
the large round circles are the trees
the smaller circles in between are the 55 gallon drums.
i saw on Craigslist that some are plastic and have removable lids. so thought of putting one in the ground (bottom), then another one above it (Top), as height as i can get it.
pump from bottom to top, float switch to stop pump when top is full, then gravity feed from top to plants, then drain from plants to bottom.
this way the pump should not have to run 24/7 

 
Multitek 1610EZ, TimberKing 2000 & Talon Sharpener,
"let the machines do the work"

Online DDW_OR

  • Senior Member
  • ****
  • Posts: 892
  • Age: 49
  • Location: Glendale, Oregon
  • Gender: Male
    • Share Post
Re: starting a HF Greenhouse
« Reply #5 on: August 23, 2017, 04:11:02 PM »
...... The only thing I did not do that I should have is to close off the top vents permanently. ..... I did manage to purchase them using their 20% off coupon.......Only problem is after about 10 years, there are holes that are appearing in the outer surface of the panels on the roof on my older one.

i have been wondering about those vents
yep, the HF here would not let me use the 20% on the sale price, but they did let me use it on the regular price. so regular price, minus 20% = $30 cheaper than the sale price
i hope in 10 years there will be better panels available for when mine go bad.
Multitek 1610EZ, TimberKing 2000 & Talon Sharpener,
"let the machines do the work"

Offline ljohnsaw

  • Senior Member x2
  • *****
  • Posts: 3094
  • Age: 58
  • Location: Northern California
  • Gender: Male
  • Happily retired... Working harder than ever!
    • Share Post
Re: starting a HF Greenhouse
« Reply #6 on: August 23, 2017, 04:27:28 PM »
the smaller circles in between are the 55 gallon drums.
i saw on Craigslist that some are plastic and have removable lids. so thought of putting one in the ground (bottom), then another one above it (Top), as height as i can get it.
pump from bottom to top, float switch to stop pump when top is full, then gravity feed from top to plants, then drain from plants to bottom.
this way the pump should not have to run 24/7 

 (Image hidden from quote, click to view.)
I did something similar.  My "top" tank is too far from my bottom tank to have some wiring (plus I didn't think about it and run some conduit).  In my bottom tank, I have two float switches.  When the tank fills to the top, it triggers a 12v relay that latches and triggers a solid state relay to run the pump.  When the tank is nearly empty, the second switch breaks the 12v power connection to the relays and the power is dropped from the pump.  In theory, since I never drain the lower tank completely, I should never overfill the upper tank (275 gallon IBCs).  However, as the plants consume the water, I have to add some from time to time.  Occasionally I forget and put too much in.  Then I get a gusher at the top tank :-\  A failsafe float switch up there would come in handy!
John Sawicky

Just North-East of Sacramento...

SkyTrak 9038, Davis Little Monster backhoe, Case 16+4 Trencher, Home Built 38" cut Bandmill up to 54' - using it all to build a timber frame cabin.

Online DDW_OR

  • Senior Member
  • ****
  • Posts: 892
  • Age: 49
  • Location: Glendale, Oregon
  • Gender: Male
    • Share Post
Re: starting a HF Greenhouse
« Reply #7 on: August 24, 2017, 12:40:11 AM »
thank you for the ideas.
thinking of programming a Raspberry Pi to take care or the watering system.
the last time i did any programming was at DeVry with the 8088 processor.
and before that it was basic programming with the Commodore 64, no machine code.

so, a float switch in the Top for Empty and Full. will add an overfill pipe to the Bottom
Bottom = Empty, Full, and Over Full
then for the Raspberry Pi to check system water level, shutoff pump, wait 30 minutes, check Bottom water level to see if Full switch is active, if not then open main water valve to fill. if Over full activates then shut main water off and activate pump.
a flow sensor or 3 would be good additions.

i will be trenching the following to the Greenhouse, water, 240V, Ethernet, and an empty 1 1/2 inch pipe

wish i had Natural Gas near the property.
Multitek 1610EZ, TimberKing 2000 & Talon Sharpener,
"let the machines do the work"

Offline Ron Wenrich

  • Forester
  • Administrator
  • *****
  • Posts: 13531
  • Age: 69
  • Location: Jonestown, PA
  • Gender: Male
    • Share Post
Re: starting a HF Greenhouse
« Reply #8 on: August 24, 2017, 06:26:44 AM »
For my watering system, I simply used a fish tank pump.  I believe its somewhere around 60 gal/hr.  I have a programmable timer that allows it to run for a 15 minute cycle for 4-5 cycles a day.  I run that into 1/2 inch line that hangs overhead.  Then, I put in a 1/2 gal/hr emitter that runs off a 1/4 inch line that runs to each plant.  Excess water is run into a 4 inch sewer pipe that runs back to tank.  It connects to each bucket.  I have a smaller greenhouse and only use a 25 gal tank, which is a cheap tool box from Lowe's. 

For my lettuce, kale and onions, I use an ebb and flow setup.  They seem to tolerate that very well.  Runs off the same system.
Never under estimate the power of stupid people in large groups.

Offline bigred1951

  • Senior Member
  • ****
  • Posts: 383
  • Age: 27
  • Location: morehead, ky
  • Gender: Male
  • logging and sawmilling
    • Share Post
Re: starting a HF Greenhouse
« Reply #9 on: August 25, 2017, 09:40:27 PM »
Ron do you have any pics of your hydro system. I've thought about doing one just have no clue how to set one up really or how to feed them. I know you have to add the nutrients to the water.

Online DDW_OR

  • Senior Member
  • ****
  • Posts: 892
  • Age: 49
  • Location: Glendale, Oregon
  • Gender: Male
    • Share Post
Re: starting a HF Greenhouse
« Reply #10 on: August 26, 2017, 01:14:20 AM »
Multitek 1610EZ, TimberKing 2000 & Talon Sharpener,
"let the machines do the work"

Online DDW_OR

  • Senior Member
  • ****
  • Posts: 892
  • Age: 49
  • Location: Glendale, Oregon
  • Gender: Male
    • Share Post
Re: starting a HF Greenhouse
« Reply #11 on: August 29, 2017, 07:25:15 PM »
greenhouse build is on hold until the fire season is over.

I have made the RR tie foundation. it is two ties high, used 1/2 x 20 inch pvc pipe to secure the upper to lower tie.

now going to test the soil on the 166 acres to see where i have the best soil to use.

so, until the rains start i will be working on other projects.

  

 

 
Multitek 1610EZ, TimberKing 2000 & Talon Sharpener,
"let the machines do the work"

Offline Ron Wenrich

  • Forester
  • Administrator
  • *****
  • Posts: 13531
  • Age: 69
  • Location: Jonestown, PA
  • Gender: Male
    • Share Post
Re: starting a HF Greenhouse
« Reply #12 on: August 31, 2017, 03:29:01 PM »
Ron do you have any pics of your hydro system. I've thought about doing one just have no clue how to set one up really or how to feed them. I know you have to add the nutrients to the water.

Here's how my system works.  I have a water reservoir which holds about 25 gal when totally full.  It's a heavy duty plastic tote from Lowe's and costs $12.  They also have a 40 gal one for $20. 
 

 

The big pipe is a return line.  The green hose is just a garden hose that attaches to a submersible aquatic pump.  You can pick them up on Ebay pretty cheap.  You only need one that gives about 5 gal/min at 6' of head.  I run that on a timer to water about every 6 hrs for 15 min.  I'll add another 15 min cycle when the afternoons get hot to reduce plant wilting.  I attach that to a series of pipes overhead.  This is some 3/4" irrigation pipe I had laying around.  Everything is dry fitted, since there is no pressure in the system.  I have it going out to zones, so I can shut them off when a zone isn't in use.
 

 

At each zone, I reduce it to a 1/2" hose which you can buy at Lowe's for $20 for a 100' roll.  You'll need to cap the ends.  I then put drip lines to the buckets.  It uses a 1/2 gal/hr emitter.  I am growing in sawdust, but some others use clay marbles.  I put a 5 gal paint filter in the buckets to hold the sawdust.  That prevent debris from coming back into the system.  They last a couple of years.  That can get into the emitters, and they have to be cleaned when that happens.  You also want dark buckets to keep light from making algae.  The bottom has an overflow that allows the excess to go back to tank.  Without that, you'll have problems if you put in more water than the plants use.  I put a 3" hole in the lid, which seems sufficient. 
 

 

I also made an ebb and flow system for my smaller plants, like lettuce and kale.  I also grew some onions in them.  These are made from 6' fence posts I got at Lowe's.  You need to glue caps on each end to make them watertight.  I made a rack to hold these in.  The water comes in from the top, and just goes through the system until the last one goes to tank.  You also have to put in an overflow and a valve to adjust the outflow from the system.  Otherwise the water goes through the system too fast for the small plants to absorb.  My system will hold 42 plants.  It's a lot more than what you need.
 

  

 

I've used Miracle-Gro as a nutrient source.  I've also used some hydroponic store nutrients, which are a lot more costly.  You have to have enough nutrients and have to cycle them a bit to get the best results.  You can also make your own nutrient batches from compost and other additives, but I have never gone that route.  You also want to keep your water at a pH between 5.8 to 6.8.  I use some spa balancers from Kmart to get my pH in balance.

The nice thing about the system is that you don't have to weed.  You do need to keep an eye on bugs.  I had aphids on the peppers and cabbage bugs on the kale.  Other than that, my system uses about 5-10 gal of water per day.  I don't plant more than we can eat of a fresh basis.  There's only 2 of us, so the small greenhouse works for us.  Our growing season has been extended by about 1 month on each end. 
Never under estimate the power of stupid people in large groups.

Online DDW_OR

  • Senior Member
  • ****
  • Posts: 892
  • Age: 49
  • Location: Glendale, Oregon
  • Gender: Male
    • Share Post
Re: starting a HF Greenhouse
« Reply #13 on: February 05, 2018, 12:39:31 PM »
i got the metal frame assembled

well the rains came and all of the rail road ties settled.
now the RR ties are not level, thus making the metal frame not square, thus preventing installation of the panels.

I plan to make a wooden frame inside the metal frame. this will help the greenhouse survive the winds, strongest wind so far is 45 mph.

after the wood frame is installed i will use my Bobcat E80 it to lift the greenhouse off of the RR ties.
then i will re-level, and put the greenhouse back onto the ties. then build the second greenhouse and wooden frame

then on a windless day i will install all of the panels with clips and screws.
Multitek 1610EZ, TimberKing 2000 & Talon Sharpener,
"let the machines do the work"


Share via delicious Share via digg Share via facebook Share via linkedin Share via pinterest Share via reddit Share via stumble Share via tumblr Share via twitter

xx
greenhouse to dry wood

Started by music_boy on Drying and Processing

3 Replies
1752 Views
Last post November 17, 2005, 06:51:19 AM
by lawyer_sawyer
xx
wood for greenhouse

Started by OneWithWood on General Board

1 Replies
955 Views
Last post September 27, 2002, 06:45:44 AM
by Tom
xx
Building A Greenhouse

Started by Planman1954 on General Board

27 Replies
3689 Views
Last post May 26, 2018, 07:00:59 PM
by Planman1954
xx
New greenhouse build

Started by Picky2016 on Timber Framing/Log construction

26 Replies
3685 Views
Last post October 10, 2016, 02:17:06 AM
by Geeg
 


Powered by EzPortal