I saw a request the other day about how to deal with high humidity in a GH and was curious about that myself since it rains in my GH during the winter. Just now it occurred to me that, while it would tend to decrease temps in the GH, if you took a small pump and circulated water (or anti-freeze) outside to cool it and back inside to create controlled condensation you could in essence have a cheap dehumidifier. If you catch the run off from the condensation lines you just put it back into your FT. Whadaya think?

Hi In your EMAIL I believe   you mentioned that you hadn't come across insulated I B C systems ? The first thing I did was to insulate the system ,cool in summer warm in winter .The grow light eight T 5 lights combined with sump tank give 12C- outside Tem 9C fish tank 19C -,going to install gas heating for G H ,simply the grow lights go out  at  night , the gas heater can maintain tem to about 15C .When it gets colder will send you readings .My first winter aquaponics .I like the idea of using freezers  good insulators

Jeremiah, what do you think of this greenhouse design? I came across it while dreaming of creating something like it on my parent's land in Door County. I'm not thinking of the "rooftop" aspect, but more just the "bucky ball" shape, which would be easy to build, shed snow and wind load, and generally be awesome. Then perhaps one of your covered fish tanks right in the middle? Wonder if I would need to excavate ala a root cellar to be able to heat it thru a Door Co. winter? Could it be done with plastic covering? I just started surfing your site so please excuse the newbie questions.

Remember that my FTs are not in the hothouse per say but in a separate insulated (gaining on that) room that is well shaded and pretty much at outdoor temps, but shaded. I will have to figure out a way to test it. I am still on the fence but appreciate your input (above just about anyone else I can think of)

Got all my water and electric and IT run underground to the GH this week and started the pine siding going up. Very exciting to see things moving forward again. Liner is going into the raft bed this week as well.

I left a comment at your FB page but it goes into the "other" folder til we "friend".

Anyhow, I have a Q for our enthalpy expert. Is it better to remove insulation from the FTs in the Summer so that they can sweat? Evap cooling could be more effective than insulation. Any thoughts when u have time? or should I run some sort of test when I have time

I got your email blast in the Michigan Aquaponics Association room but had a heck of of a time finding this group. May be just my lack of internet/blog experience. When I clicked the link on your invite it took me to the MAA group but nothing was there to guide me to your group. I se from the responses that you must have reached a lot of people.

Hello Jeremiah,

I also live in Madison.  If you'd ever be interested in showing off your system give me a shout.  I'd love to meet a fellow aquapon in this city.