Carbon Monoxide from gas dryer. Concern? Science

Discussion in 'General Plumbing Help' started by bobbobobbo, Jun 24, 2019.

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  1. Jun 24, 2019 #1

    bobbobobbo

    bobbobobbo

    bobbobobbo

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    I've read some conflicting info. We have a gas dryer in our basement that is piped to the outside. The run is quite long (30+ feet) with a few bends, but it was recently serviced for lint, etc.

    We have our workout area in the same room, as well we fold laundry in front of a TV in the same room. We have CO detectors, yet I'm generally curious of the safety of this area. Let's say there was a leak in the vent or it became clogged with lint. If a gas dryer is working properly it should not emit much CO anyway, is that correct? Also, where does a gas dryer get it's oxygen source, wouldn't that deplete the area as well and could cause a problem? (though I suppose a water heater would do the same, and I've never heard an issue with that)

    We normally run many dryer loads back to back, just nervous about going for a jog on our treadmill while the dryer is running. Or if I'm overthinking things.
     
  2. Jun 24, 2019 #2

    breplum

    breplum

    breplum

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    Gas dryers only emit CO through the dryer vent, you are correct.
    Code for venting gas dryers is 15' max. with two elbows included.
    Longer gas dryer runs dictate utilizing powered dryer vent booster, which switches on automatically when it senses pressure of dryer "on".
    Make-up/combustion air is vitally needed to run gas appliances. There are code requirements that include inflitration, if the area is large enough (in terms of cubic feet).
    LMGTFY https://www.nfpa.org/~/media/Files/forms and premiums/54/54HB15_CH28_SUPP4_WS3.pdf
     
  3. Jun 24, 2019 #3

    bobbobobbo

    bobbobobbo

    bobbobobbo

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    Thank you.

    This run is 40 feet with 4 bends... goes from 4" to 5" for 80% of the run. It's how the townhomes installed them.

    The room volume is 30'x10', and there's an equal room adjacent that it can sneak air from. I think we're ok then for make up air. Previously the dryer was in a hallway room, even less there there...
     

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