The heater is packaged with the feet unattached. You must attach them before
operating the heater.
WARNING: Do not operate without feet attached. Do operate the heater only in
upright position (feet on the bottom, controls on the top), any other position
could create a hazardous situation.
1. Place the radiator body upside-down on a scratch-free location, make sure it is
stable and will not fall.
2. Screw off the wing nuts from the U-shaped bolt provided, attach the U-shaped
bolt to the U-facing flange between first and second fins (near the front cover).