COOL your Greenhouse (7 Ways)

Watch a video about the making of my geothermal greenhouse:
• The Story of Building ...
Links to equipment:
The attic and fresh air fans: amzn.to/3eTw60G
The inline G.A.H.T. fan: amzn.to/3BkI0YR
The air circulation fan: amzn.to/3qFhnsG
Infrared thermometer gun: amzn.to/3dh8T89
Wireless thermometer and hygrometer sensor: amzn.to/3QMiW2O
Bluetooth thermometer and hygrometer sensor: amzn.to/3UeaOuM
This is the first in a series about the features of my G.A.H.T. greenhouse. In this video we are going to talk about seven ways I cool my G.A.H.T. greenhouse. But not all of these techniques are exclusive to my type of greenhouse. Points 3, 4 and 7 (also 5) apply to all greenhouses.
If you have a greenhouse you know that solar energy can be a double-edged sword. For many people during the hottest part of the year greenhouse is just another way of saying OVEN.
However, the hottest recorded temperature in my greenhouse was 95.9 degrees and that was on a 94 degree day. Also it was only over 90 in my greenhouse that day for about 3 hours.
So how am I able to keep the greenhouse so cool? I’ll mention seven ways, and the first two ways have to do with you guessed the G.A.H.T.
GAHT fan is pulling hot air out of the top of the greenhouse and cooling it 6ft below ground, That cooled air is returned to the greenhouse helping to lower the overall ambient temperature. In addition to the G.A.H.T. system - fresh air intake and an attic vent that is exhausting hot air.
I also can replace windows with screens,
The next three ways have to do with the location shape, and position of the structure.
My greenhouse is located where it get’s shade from deciduous trees in the morning and later in the afternoon when it’s hottest…shade from trees that lose their leaves mean it’s keeps cooler longer. My greenhouse has a wood shingle ROOF. The roof is designed to reject the angle of the high summer sun. In fact during the summer the sun doesn’t reach the back wall of my greenhouse. Lastly the position of the greenhouse. The structure is pointed south south-east by about 15 degrees. This means that during the hottest part of the day the building is faced away from the sun.
So there you have it, 7 ways I cool my greenhouse.
But you might wonder is a greenhouse worth it or even what is the best greenhouse. The fact remains that greenhouse growing is a satisfying hobby, stay tuned to my channel for a greenhouse tour. Once you have a greenhouse you will wonder how to cool down greenhouse because your greenhouse too hot, so watch this video and learn how to cool greenhouse.
a passive solar greenhouse is a great way to manage excess heat. These can be made from old window greenhouse and new passive solar greenhouse construction.
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In this video, I'll be updating you on my progress in building my winter passive solar greenhouse. I'll be covering topics like greenhouse construction, old window greenhouse insulation, and more.
If you're looking to build or retrofit a greenhouse in the winter, be sure to check out this video! I'll share with you all the latest information on passive solar greenhouse construction, as well as tips on how to make your greenhouse heat sink effective in the coldest months of the year. Thanks for watching!

[@jewdd1989]

Thoroughly enjoyed pallet siding shingles! They’re prettier than expected and I especially appreciate the breakdown of pallets. I don’t usually like pallets for anything however when string, clean and hidden why not and the character in the boards can be stunning! I love cedar but the price in my area is nearly equivalent to hardwoods so pallets are fine

[@flaviolillo3947]

I'm doing a homework about cooling greenhouses and this video is perfect. Thanks from Chile 🇨🇱

[@441rider]

Awesome vid. I use a solar panel as a mid day shade on my micro urban greenhouse. Plan to run the hot air over a tub of water to floor. Also intake fan from drop in elevation in shade on north.

[@JohnGuest45]

My neighbours greenhouses became ovens during this summers record breaking 40.3C (104.5F) shade temperatures. When i installed my shcs back in 2009 they thought i was slightly mad to dig trenches and bury tubes under my greenhouse. I had to run the system quite hard, around 70% of maximum, during the sunniest part of the day to keep pace with the incoming gains and maintain the greenhouse at 85F. The outdoor night temperature didnt drop below 29c (84F) so it was pretty relentless heat.

[@sparkey4293]

Live 25 miles inland in S CA so the main reason for a greenhouse here is to keep humidity up and to keep things alive in the summer heat. It got to 115 degrees outside three summers ago.

[@rosstaylor3927]

I’ve always thought of the GAHT system you have. I just never knew what to call it. Even as a young adult I always wondered why don’t homes us the ground to keep homes cool. We didn’t have A/C when I was a kid but we had a finished basement and I would spend most of my summer nights in the basement sleeping. I thought then, why don’t we blow this cool air upstairs? Now I wonder, why don’t homes use the 50°+/- temps to cool in summers and heat in winters. Even if there was an 8” pipe that loops around the house 8 feet down with small efficient fans cycling air. I would think it would make a difference. But now I know what to all it maybe I can find more information about this topic. Thank you!!

[@meteoritesandsome8983]

Wow! I live in Southern Wisconsin. My greenhouse reaches 120 easy. It is too uncomfortable to even do anything in there. Aquaponics doesn't have fish but they'd prob boil. I put in a pool tubing array about 2 feet down with the thought of heating the ground for plants to grow in winter. It freezes in thete now aquaponics tank solid freeze. Have a wood stove. Have 3 black barrels with water in them want to work on a dernord heater and force hot water through them in winter plus blow warm air through tubing array. I need to figure something out. I'm just getting older. Thanks for vid helpful.

[@WineberryHill]

Thanks for watching!

[@toddberkely6791]

woah... deeply well thought out building

[@DavesBonsai]

Love your videos! Looking to build my greenhouse summer ‘23. Watching all you videos and reinforcing my learning. Thanks!

[@WineberryHill]

Awesome, keep us posted!

[@mandiegarrett1706]

Sadly, I can't do GAHT system due to our shallow bed rock here in Arkansas. We can't dig down about 3ft without heating a huge bed rock so digging down about 6ft is out of the question so will have to look into other options for our area.

[@WineberryHill]

I’ve seen some household geothermal systems specifically designed for boring into rock, that make use of the inherent heat storage of rock…no idea on pricing though

[@ravish05]

Thank you for sharing this video. I do not think I can go back and dig up the ground to install a geothermal system. Mine is a lean to greenhouse. I run a fan on thermostat that I use to try to vent out the hot air and also use a shade cloth. Would you have any thoughts on using misters or foggers inside the greenhouse to cool the ambient air?

[@WineberryHill]

I generally don’t need to because I managed to reach equilibrium with the outside temperature when it’s hot outside but if I needed to I would totally use a misting system I think it’s a great idea

[@pvp6077]

You can put the tubes for geothermal outside of the greenhouse, anywhere you have some clear space you dont mind digging up, and just run the pipes in. Some people do geo as a straight drill down, some spread it out over a long line like a ditch, or a field, and some meet in the middle like this setup. The ditch method is probably the easiest to do by hand as a single person, esp as some people will even build a mound to create greater surface depth in areas with hard or rocky soil (rocks amd soil for cooling, or woodchips and compost for heating). If you have the money, electricity, etc to run misters that might be easier in the short term, if humidity is not an issue for you. In my region humidity causes a great deal of fungus and rot so removing moisture is more of an issue here.

[@moonheecho3654]

I like your greenhouse, and the ideas. I also was thinking to install Geothermal for a greenhouse which I'm thinking to install in few months. I though I can drop temperature to 70 or 80F in summer easily. However if your greenhouse temperature is 90F with Geothermal with other 6 ways, then If I build a regular greenhouse with Geothermal without the 6 ways, I guess my greenhouse will go over 100F even with the Geothermal system. Can you let me know how much did you spend to install the Geothermal system, and how much do you pay for electric bill and running hours a month?

[@WineberryHill]

I haven't been tracking the electricity, beyond not noticing any big spikes on the bill since I started the greenhouse up. Yes a traditional greenhouse WILL over heat very easily.

[@alexandraderry7086]

Just what I was curious about!

[@Tinishahateyou]

Thanks your fabulous

[@sadsciuidae3425]

OK thanks

[@SlavkoStorm]

Can I just add AC?

[@najatitati7177]

I need to know this as well

[@WineberryHill]

By design, greenhouses gain a LOT of thermal energy, in theory you certainly can add an AC, but It would likely be expensively inefficient.