You want to build in fire controls with an auto kill switch if you add a thermostat controller to your fan. You can imagine the disaster of heat from a fire triggering the fan. The fire would go out of control in a matter of minutes. There are different options for dealing with this issue. Be sure to do your homework on this one.

If you ask me it is a bit overkill at this point. Get setup, do a grow and build out from there after you determine your needs. Not a bad price on that little unit though.