hello all,
hope yur doing well..
i'm not going to run greenhouse next winter, i used them for 2 years with no problems.. no box, no instructions.. yu can swap wires and use for fans or leave as they are and use for heaters.
if interested post here with yur zip and i'll pm yu with total
2 Portable Thermostats
2/$50.00 +actual shipping
http://kkontrols.com/
above is link to where i purchased them