Purchase the DS100 thermal switch so it turns on when the furnace does. It works great.
Dear Northerner, If you are trying to move air that distance you should have a larger duct size since the friction/internal resistance of the duct will hamper any boost factor that might be gained from the small undersized duct and this type of booster fan. A better fan for this operation would be a axial turbine fan since they are designed for positive pressure operation compared to negative boost fans. You will be supplying minimal air flow improvement with a propeller type of fan.
Dear Ezzee, Yes you can, the shroud would need to be modified for the install to the vent louver for mounting. It could be done in several ways: Easiest way is to fasten 90 degree brackets to the shroud (pop rivet, sheet metal screws, short bolt/nut,) to hold the fan unit to the face of the louver. Be sure to provide clearance for the fan blade but if the brackets are installed flush with edge of the shroud it will be OK.You might need to install some verticle or horizontal pieces to fasten the angle brackets to. All depends on the size of the louver, even if the face dimension is larger the fan will still exhaust hot air. Connect a thermal switch/sensor in line with the fan to make it automatic or with a on/off switch.
This fan can be installed in any position.
The best option for your application is to run 8" flex all of the way and not reduce to 6". Reducing to 6" immediately after the fan can substantially reduces the airflow. If you must reduce to 6" go out at least 20" or so before reducing to 6"..
Yes just install normally.
55 watts