Thermal switch for (external) room fan... suggestions? ...anyone install one?

[KevinK]

...Looking for ideas/suggestions for a thermal switch.

I've been running my (Oslo) stove for a couple years now, ...and very pleased with it.
I recently put a vent in the floor to the room above the stove, (The stove is in the rec room, ...living room just above) and plan to install a fan there to draw up more of the warm air.
In addition to a variable speed switch I am interested in adding a thermal switch that would cause the fan to come on at a certain temp (say 70 degrees).
Has anyone done this, ...and if so, ...can you point me to the specific switch you used?

FYI, ...the fan I plan to use is a simple inline (inductive) 6" duct fan, ...about 160cfm which is all I think I need.


Thanks in advance for any info.

Kevin

 

[pen]

this might interest you. http://www.amazon.com/Lux-Heating-C...Y8/ref=sr_1_11?ie=UTF8&qid=1325619867&sr=8-11

pen

 

[LLigetfa]

A standard line voltage wall thermostat for baseboard heaters could turn a fan on and off. I had one in my former home but the heat loss through the long duct run served to heat the crawlspace instead of the back room so the fan ran all the time.