hallway and livingroom within the last week. The hallway was a pain in the a$$ to scrap off because it had been painted over, the other rooms were super easy. I ended up dinging the sheetrock a bit in the hallways, but it was simple to mud over and sand. Use a garden sprayer(this thing was a life saver) and let the water soak for 2 minutes before scraping. I used a metal 6" scraper and it was awesome. If your floors are nice and you don't want to get everything wet, I highly recommend taking a lot of time to tape off everything so you don't have a huge mess to clean up later. We are doing a lot of renovations to our house so I just threw down some plastic and moved it around as I went because we are having everything replaced. Good Luck!

condensate line as well. If that is the case, you need to be careful with putting any nails near them as they are high pressure sometimes going up as high as 450PSI.

OK, you have a few options. One build a false wall in front of them. Simply nail vertical boards that extend out further then the widest pipe. Then once those are fastened in place fasten a thin sheet of drywall or paneling on those vertical boards. These vertical boards are the "cleats" that SLS Construction Solutions suggested.

For the ceiling, once the wall is corrected you would do simply the same thing. Fasten boards that extended down below the pipes then fasten a new drywall sheet to those boards. Effectively closing in the pipes. Realistically however ceilings are not as big of an issue then a wall. Most folks do not look at the ceilings as they would looking at a wall. So I like them would really only focus on the walls putting my effort in that location.

Another way to do this is to purchase plastic louvers that are used on windows. Have them cut to the width of the wall and hang them on the ceiling and allow them to extend down as low at you can.

I do have one concern however. You stated that you already hung a curtain down in front of the equipment to hide this part of the system? Please be really careful when doing such a thing. Many furnaces on the front can become quite hot and if the curtains for what ever reason come into contact with the equipment you can cause a fire. If your really close because of lack of space I would suggest that you purchase bi-fold louver doors that already have the hinges on them, paint them and stand them up in front of the equipment. They can be easily moved for service and will not be drawn into the system as curtains possibly can.