How difficult is it to regulate a GH?

[silken]

Originally Posted by pedidiva

for me the heating/cooling was difficult. Got an evap AC (works here as we're semi arid) & electric heaters. Found a misting fan that works quite well to keep huminity up.

What kind of misting fan did you find and where if you don't mind me asking?

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[Eyebabe]

I control my GH with a MicroGro control system.
It was NOT inexpensive but I love it.
I still have to tweak some of the parameters as I have many little temp/humidity monitors around the area (18' x 13') and am figuring out microclimates...

I use a fogger for humidty
Gas for heat
Evap cooling for cooling
I also have the automatic open/shut for some of the windows and fans that run 24/7.
My watering system is r/o and works but we are still diddling around with it
I do have glass and just ordered some shade cloth a bit too late (two or three of my catts are saying "ouch")

I will post some pics soon....

(I had been saving/planning for 5 years now and lucky enough to be able do a "bells and whistles" structure )

[Paul Mc]

WOW, very informative guys! Thanks!

[Ray]

I have my greenhouse automated like this:

HEAT: Propane heater on a thermostat; maintains a minimum temperature.

VENTILATION: 24/7 circulation fans inside.
Two shutters in front wall that open on the gas-cylinder openers automatically. When interior temp reaches 80°F, a large exhaust fan kicks on, pulling LOTS of air through the GH.

HUMIDIFICATION: Jay-Bird Aquafog 700 on a humidistat.

I had swamp cooler when I lived in Louisville KY, so I know for a fact that it can be effective, even in relatively high humidity. I am playing with the idea of a vertical one using stacks of EcoWeb as the dispersing medium.