JudyB
Queen of the Nuts
I've thought it would be fun to build a greenhouse with a temperature control system to winter trees in. My thinking was that a thermostat could turn on a fan/vent when the temperature was too warm and if the temperature was too cold, the thermostat would engage a heater. Maybe something for humidity would also be good too.This way, winter could be near worry free.
I also realized that its probably completely unnecessary, but oh well... I still think it'd be a fun project.
This is exactly what I have built for winter storage of my trees. Heat mats, and a heater with a fan to blow the air around, and a thermostat that turns on heat at 32, and vent and a fan that sucks outside air in at 40. But when the outside air is warmer than 40, there is the problem. That's why I'm thinking of a cooler unit as well. I have humidifiers in there that come on in sequences on timers throughout the day. Here is a link to a thread with info about it.
http://bonsainut.com/forums/showthread.php?10624-My-Cold-(Green)-House