I have a santa fe pellet stove that I would like to have a box fan running only when the convection blower is running to help move the hot air to other rooms. I am not sure what the best idea would be tap in to the blower using a relay and a separate power supply to run the box fan or running the both from the same thermostat maybe using the fan connection on themastat that trips a relay that I can tie the box fan into knowing when the stove calls for heat it will turn the fan on then. Both would work for me I just dont want to run the fan 24/7. Pellet stove runs from a battery operated programable thermostat using only two wires currently.