Ecobee3 / Wemo Automation

Looking to create what seems to be a simple automation between Ecobee3 & Wemo Switch. What I would like to do is when the Wemo Switch powers on it kicks on my Furnance motor and when then Wemo switch powers off it powers off my furnance motor. I have a woodstove that the blower motor plugs into the Wemo Switch and would like to use my Propane furnance fun to help circulate that heat. When attempting to create an automation you are limited on controlling fan mode on the Ecobee and doesn’t provide the option. Any ideas?