I tried starting a thread but no-one was interested, ill try again. Here is the box. Im growing in a very cold shed, so i have to have a heater and ducting to try get warm air into the box, the warm air is drawn in by xbox fans running on 12v. You can see it in the pic with the blue thing, heater on the right with 2 knobs on top, ducting wapped in black plastic then a wire mesh connected to the box. The heater and xbox fans are connected to a temperature controlled plug outlet and kick in when temps getbelow 25oC. Exhaust is xbox fans again runnin on 5v. Im waiting to get more fans for circulation. LOL, never mind all the wiring.