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The water feed line on my furnace humidifier that connects to the pad started leaking, so I need to replace it. The original was made latex 1/4" OD tubing, but the store doesn't have that size and the latex tubing they do have is MUCH more expensive than vinyl tubing.

My questions:

  • Is it a problem to use Vinyl for water tubing that will end up circulating in my air?
  • Will Vinyl tubing work for my situation? Was there a reason the original had latex tubing?
  • Do I need to be concerned about the temperature the tubing may reach being next to my furnace?
  • Aren't there a lot of types of vinyl? Do I have to look for particular properties of my specific vinyl to make sure it would work for my situation? Or would any vinyl do?

If it helps you can see a diagram of my HE220 humidifier and you can see the tubing on page 3 which also connects at the top of the pad.

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  • Are you sure it is latex? Could be a soft vinyl or rubber. I looked at the install instructions, and various places online and nothing said latex, rubber or vinyl. However, tubing was used, which generally indicates vinyl, hose is usually rubber.
    – Jeff Cates
    Commented Mar 13, 2018 at 17:05
  • No, I'm not sure. It was black (opaque) and squishy and the only tubing material that was remotely similar at my hardware store was latex, so I just assumed. I called Honeywell this morning and said Vinyl or latex are both fine.
    – Dan
    Commented Mar 13, 2018 at 17:43

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I called Honeywell about the issue and they said both Latex and Vinyl were fine to use for the humidifier water feed tube.

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