A picture would be helpful so we can see what you see. Is it out in the open, what room in the house, in a closet?
Need more info please.
Can you post a photo please?
Most people build around it, leaving air vents and an access door. Either that or hang curtains in front of it. We should be able to find more specific help if you edit your question to include a picture. Wishing you the best.
A folding screen is one idea. Another is to install a track on your ceiling to hold curtains that can be moved back and forth (like the kind they have in the ER in hospitals). You can buy both at home improvement and home decor stores and are easy to install.
I put up a curtain in front of mine in the laundry room. You would never know it was there.