Air compressor intake plumbed outside

[brownsmustang]

I've searched for any information on this but didn't find what I want. It seems that a lot of people plumb the air intake outside to reduce noise. I'd love to do that BUT I live in the great white North (central MN) and am concerned about the severe cold temps we have here (highs in the negatives 20s when we moved here). Will that cause me any issues? I considered running the pipe up by the ceiling and around by the wood stove to help warm it a bit before it hits the compressor. What say you expert's?

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[nelstomlinson]

Cold air holds less moisture than warm, so you'll get a bit less condensation. Cold air is denser, so your capacity will increase, but probably not enough to notice.

 

[finn]

Neighbor has his air intake plumbed through the wall. He’s a paint and body guy, so the compressor sees regular use in the winter when he’s laid off from his regular seasonal construction job.

It’s pretty obnoxious outside, so make sure you aren’t transferring the noise problem to your neighbors.

Luckily for my neighbor the body guy, I don’t mind the noise.

 

[driz]

I've searched for any information on this but didn't find what I want. It seems that a lot of people plumb the air intake outside to reduce noise. I'd love to do that BUT I live in the great white North (central MN) and am concerned about the severe cold temps we have here (highs in the negatives 20s when we moved here). Will that cause me any issues? I considered running the pipe up by the ceiling and around by the wood stove to help warm it a bit before it hits the compressor. What say you expert's?

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You’re going to get condensation and have to deal with it no matter what you do. Mines on the basement and the line being vertical for 8’ helps greatly in reducing condensation . Running it through something like a homemade Franzinator and a couple J Traps will clean it all up nicely.
The worst water seems to happen right when you want to paint in my experience, hot summer days. High humidity is about as bad as a rainy day for condensation.


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[brownsmustang]

Thanks for the responses!

 

[redmondjp]

If you do this, you want to do two things - oversize the intake pipe if it is long, so there are no losses, and most importantly - isolate the piping from the pump using a section of rubber hose (car radiator hose can be found in many sizes and bends) so you don't transfer the vibration of the pump to the intake piping and to everything the intake piping is mounted to.

 

[driz]

The big thing is how you plumb it. No rubber until the end and add a couple J traps with the lines being metal. That will condense the water out of vapor [emoji1695]before your tools . Mine are all 3/4” L copper soldered and not one hassle in 20 years. TIP Sandblasters had a nice layout diagram you can modify to suit your garage. Check out their web site If I had mine to do again I’d run my lines along the ceiling for even longer vertical surface. The more the better!


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