first grow, need box help

Farscape;1827753 said:

I am not very good at diagrams so this is the best I could do with a wiring diagram for the stealth fridge.......

Hope you can see it and it makes sense.....

The thermostat controller is a very common cheap controller, used for countless different applications. I am certain that our sponsors on 420 forums could find you better controllers. The STC-1000 comes in different varieties, heat and humidity controllers, 12v dc and 240v ac also with different inputs on the back, you just have to be careful which one you need.

With the LED's on and no cooling the inside of the freezer heats up pretty quick, stabilizes at around 38 - 42 deg C.

I run the thermostat at 30 degrees C. with a 2.5 degree difference in temperature. Which means soon as the temp rises to 32.5 deg C. the extractor fan set into the bottom of the freezer kicks in and sucks in cool air from the outside (you can just about see the bathroom extractor between the 2 pots in the picture). Bad point is that it will only cool the freezer to the outside temperature as its sucking air in from the outside. So if you live in a hot climate your going to have trouble keeping the temp down.

The cool air gets sucked in the bottom passively forcing the hot air out through a hole behind the LED panel. You gotta remember not to put the panel right against the back wall or you block the hole. FYI the hole in the back is only 4cm wide! I was thinking about making the hole bigger and maybe even putting a fan in it to help draw out the heat faster but in winter it gets pretty chilly in my shed so didn't want to hack out more of the freezers insulation.

When the lights go out and temp drops below 27.5 degrees the heater kicks in raises it back to 30 deg. In winter the freezer reverts back to being a freezer so needs the heater.

Surprisingly, i have had no real problems with condensation building up inside except for a little on days I water the plants.
With the lights on the heat builds up to the point of kicking in the extractor fan about 3-4 times an hour.
I know 30 deg C seems a bit high for growing but so far the plants seem to be thriving on it and 30 deg seems a good compromise for the amount of time the extractor fan kicks in to cool the freezer which is about 3-4 minutes (depending on outside temp).

I put in the independent switches to turn on and off the fan and heater, Its summer atm so i have the heater turned off all the time until the outside temp starts to drop below 10 deg C

Any questions or comments welcome

The Fridge/ freezer project will be similar but quite different to this....
I was going to use 2x 120mm 12v PC fans intake at the bottom, cut thru 2 holes between fridge and freezer with another 2x 120mm 12v fans drawing air up into the freezer section. Carbon filter with inline fan in the freezer section drawing air out in summer or back thru bottom fans in winter to recirculate warm air.

I'll try and knock up another diagram lol

Click to expand...