I have a 32x40x16 shop. I’m using a radiant heater. I notice there is a lot of difference between heat the top and the bottom of the shop (obviously). I want to put in circulation fans but I cant lose the clearance so ceiling mounts are out. Anyone suggestions?
Mount a regular desk fan at 90 deg off a wall. Blow up or down and it should circulate air. I have forced air, always missing the silence of radiant heat.
Mount a 3 inch PVC pipe vertically from the floor up to the ceiling. Put a small slow fan in the PVC pipe at the bottom of the pipe blowing out. So the tube sucks the warm air from the ceiling and blows it onto the floor. These types of tubes placed along the walls or corners can increase your floor temps by a few degrees.
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This country was started by voyagers whose young lives were swept away by the currents of the rivers for ten cents a day... just for the vanity of the European's beaver hats. ~ Red Bullets
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It is when you walk alone in nature that you discover your strengths and weaknesses. ~ Red Bullets
16' shop is going to need a fair bit of air movement to get that heat down. Are you sure you can't put ceiling fans in? They can usually be mounted higher than the overhead door tracks.
If you absolutely can't, I'd look at putting some more attic insulation in. To get 18C at floor level, you are probably running 30C or more at ceiling.