No I have not. I think maybe that insulating the tanks from the cooler ground may keep the water warmer on hot days and warm nights. If you try this please let me know your findings.
@@expathydroponics8500 I personally wouldnt insulate the tank because the lions share of the heat gain comes from water returning from the NFT channels. If you compare the water temperature going into the channel and the temperature coming out you`ll see at least a few degrees of difference. If you measure the temperaure inside one of the NFT channels in the middle of the day you may be surprised how hot it is :) The soil around the buried tank has a conductivity and diffusivity value which dictates how much heat it takes to change the temperature and how fast the heat moves away from the tank. If the soil is wet it will improve both these values compared to dry soil. Something as simple as watering the ground around the buried tank can make quite a difference. If there is a significant difference between the outside day and night temperature you can use this to cool the nutrient solution at night. A small pump could be used to circulate solution to some closed NFT channels (no plants) outside the greenhouse at night. The channels only need to be slightly higher than the buried tank so the water drains back via gravity when the pump stops.
Im in Oklahoma and built a 16x16 greenhouse just before summer. Im probably going to use solar exhaust fans to cool mine. I ever thought of doing the netting windows and then utilizing velcro so i can close them up in the winter.
Thank you for sharing this practical guide. I have something very close to yours and the problem is heat. I will share any steps I take that work. Please keep educating us, especially on affordable cooling methods.
Texas gulf coast(ish) region here. That’s for the bullet points, side wall mosquito netting, I’ll use this, buried tanks, I’ll use this too. Was thinking about burnt the tanks like this for an aqua ponics solution to hold water temp for different species of fish.
Very nice, just found your site while searching for ways to cool my small water reservoir. I live in Thailand and have a lot of similar problems with heat like you do. I have just ordered a dual Peltier chip water cooler from China. I will let you know how well (or bad) it works once I get a solar panel for it. Fingers crossed.....
Good luck Ryan. My career was in business but I always was interested in Hydroponics. It is rewarding to grow food. Good luck and just text me if you have questions. Not knowing anything when I started, I have learned a lot by my many mistakes.
Hi, i really liked the video. Can the wall fans reduce the temp of the greenhouse which is like open from the sides? Like it is covered by net but is open. I am in Tanzania and doing Aquaponics. My lettuces are bolting due to heat inside the green house so i wanted to increase air flow.
It’s been a while, but I remember I had to shop around. I think I found all of them eventually on Facebook marketplace in the Philippines (near my greenhouse). I don’t remember how much, but I remember that the prices fluctuated quite a bit.
geothermal doesn't have to be all that expensive. simply dig a hole and put a water tank in it, then infill the dead space. the water tank will cool way down every night and then a small water pump can bring that cool into your show in the daytime.
Coming from you that is a nice compliment. By the way, this week I got my first crop of Lalique. It is the best tasting yet except the head size is a little low at 155g and the seeds are so expensive. I am debating on whether the high seed cost is worth it. Seems everyone here likes the Invicta because it looks like lettuce they normally buy.
With our high humidity my only idea other than venting is air geothermal cooling. Plastic drain pipe in the ground blown by a fan. We have a lot of cloud cover here and can't afford to block light. I wonder if a in ground tank circulating into a couple of car radiators with fans would be worth doing. Average in season ground temp 500mm down is about 15-18 deg C. Greenhouse can spike into the high 30s if it's not vented fast enough that's a big diff. Anyone got any thoughts on this?
I had to suspend working on my greenhouse. I am back in the U.S. working now, but I plan to start back up next year. These methods do work, but also buying the right hybrid lettuce seed for higher heat environments is a big help.
I completely agree. I grow crisp green leaf crystal lettuce, which is much healthier and tastes better than what you can get at the market. But I struggle to sell it at a premium price.
Thanks for the information! Have you tried covering your tank with insulation foam?
No I have not. I think maybe that insulating the tanks from the cooler ground may keep the water warmer on hot days and warm nights. If you try this please let me know your findings.
@@expathydroponics8500
I personally wouldnt insulate the tank because the lions share of the heat gain comes from water returning from the NFT channels. If you compare the water temperature going into the channel and the temperature coming out you`ll see at least a few degrees of difference. If you measure the temperaure inside one of the NFT channels in the middle of the day you may be surprised how hot it is :) The soil around the buried tank has a conductivity and diffusivity value which dictates how much heat it takes to change the temperature and how fast the heat moves away from the tank. If the soil is wet it will improve both these values compared to dry soil. Something as simple as watering the ground around the buried tank can make quite a difference. If there is a significant difference between the outside day and night temperature you can use this to cool the nutrient solution at night. A small pump could be used to circulate solution to some closed NFT channels (no plants) outside the greenhouse at night. The channels only need to be slightly higher than the buried tank so the water drains back via gravity when the pump stops.
What a Smart idea ......this is one of the best thing to do. to make the plants cool... specialy this time, season of summer......
Yes, thanks - and especially here in the Philippines.
Im in Oklahoma and built a 16x16 greenhouse just before summer. Im probably going to use solar exhaust fans to cool mine. I ever thought of doing the netting windows and then utilizing velcro so i can close them up in the winter.
Thank you for sharing this practical guide. I have something very close to yours and the problem is heat. I will share any steps I take that work. Please keep educating us, especially on affordable cooling methods.
I am looking for inexpensive traditional ways of keeping warm among peasants in winter

Texas gulf coast(ish) region here. That’s for the bullet points, side wall mosquito netting, I’ll use this, buried tanks, I’ll use this too. Was thinking about burnt the tanks like this for an aqua ponics solution to hold water temp for different species of fish.
very informative vedios... Thanks for this information...
Thanks for liking Myrna. Are you ready to sell some of my lettuce?
Yeah ... let's try ☺️😅...
Grate thanks, that was very helpful to see
Cool.... Another idea's again.. Thanks
Thank you! Cheers!
Very nice, just found your site while searching for ways to cool my small water reservoir. I live in Thailand and have a lot of similar problems with heat like you do. I have just ordered a dual Peltier chip water cooler from China. I will let you know how well (or bad) it works once I get a solar panel for it. Fingers crossed.....
Thank for sharing your knowledge and experiences. Hope you are doing ok back home
Thank you, Jose, I am doing fine but I really miss the Philippines. I hope to make there my permanent home soon.
I felt that on your video; I have a similar plan in Thailand. Feeling with you bro.
great info! I'm doing something similar here in Isabela province.
Good luck Ryan. My career was in business but I always was interested in Hydroponics. It is rewarding to grow food. Good luck and just text me if you have questions. Not knowing anything when I started, I have learned a lot by my many mistakes.
very verygood video
Thank you very much. I am not too skilled at making videos and it takes me a long time. Thank you for your praise.
Hi, i really liked the video. Can the wall fans reduce the temp of the greenhouse which is like open from the sides? Like it is covered by net but is open. I am in Tanzania and doing Aquaponics. My lettuces are bolting due to heat inside the green house so i wanted to increase air flow.
Liked your video as heat is a problem in ph with hydroponics Where do you get your IBC tanks? Seems in my area they want you to take out a mortgage
It’s been a while, but I remember I had to shop around. I think I found all of them eventually on Facebook marketplace in the Philippines (near my greenhouse). I don’t remember how much, but I remember that the prices fluctuated quite a bit.
geothermal doesn't have to be all that expensive. simply dig a hole and put a water tank in it, then infill the dead space. the water tank will cool way down every night and then a small water pump can bring that cool into your show in the daytime.
Great summary!
Thank you Pavan
Good stuff. 👍
Glad you enjoyed it
nice info
Coming from you that is a nice compliment. By the way, this week I got my first crop of Lalique. It is the best tasting yet except the head size is a little low at 155g and the seeds are so expensive. I am debating on whether the high seed cost is worth it. Seems everyone here likes the Invicta because it looks like lettuce they normally buy.
With our high humidity my only idea other than venting is air geothermal cooling. Plastic drain pipe in the ground blown by a fan.
We have a lot of cloud cover here and can't afford to block light.
I wonder if a in ground tank circulating into a couple of car radiators with fans would be worth doing. Average in season ground temp 500mm down is about 15-18 deg C. Greenhouse can spike into the high 30s if it's not vented fast enough that's a big diff. Anyone got any thoughts on this?
Yeah....cause it's Hot, specialy this time...season of Summer....
It will get hotter too
I am looking for inexpensive traditional ways of keeping warm among peasants in winter

What part of the Philippines are you from?
I'ld like to grow potatoes in here the Philippines
But the problem is warm temperatures
Maybe when I get back to the Philippines, I will try yams, but hydroponic root vegetables are difficult.
Hi sir, are still working on your green house? does this method change the bitterness of your lettuce?
I had to suspend working on my greenhouse. I am back in the U.S. working now, but I plan to start back up next year. These methods do work, but also buying the right hybrid lettuce seed for higher heat environments is a big help.
Any updates?
The electricity cost in the Philippines is too high preventing many small farmers to plant high value crop..
I completely agree. I grow crisp green leaf crystal lettuce, which is much healthier and tastes better than what you can get at the market. But I struggle to sell it at a premium price.
@@expathydroponics8500what. Thé name plz of your product?
@@expathydroponics8500If your harvest is "supersized", you can try selling you crops to hotels and restaurants.
U can run fans on solar panels no excuse for saying electricity is hi ,it's about 1 dollar a watt