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An unwelcome visitor (PAH)

hot_rod
hot_rod Member Posts: 23,398
in THE MAIN WALL
I can't wait to see what the ductwork looks like on the inside! That's about a 4' diameter register & roughly 30' above the floor.

<A HREF="http://www.heatinghelp.com/getListed.cfm?id=98&Step=30">To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"</A>
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream

Comments

  • Steamhead
    Steamhead Member Posts: 17,387
    Sell them

    hydronics!

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • Don_2
    Don_2 Member Posts: 47
    The air

    > hydronics!

    >

    > _A

    > HREF="http://www.heatinghelp.com/getListed.cfm?id=

    > 157&Step=30"_To Learn More About This Contractor,

    > Click Here to Visit Their Ad in "Find A

    > Contractor"_/A_



  • Don_2
    Don_2 Member Posts: 47
    That

    > hydronics!

    >

    > _A

    > HREF="http://www.heatinghelp.com/getListed.cfm?id=

    > 157&Step=30"_To Learn More About This Contractor,

    > Click Here to Visit Their Ad in "Find A

    > Contractor"_/A_



  • Don_2
    Don_2 Member Posts: 47
    Nice find

    > I can't wait to see what the ductwork looks like

    > on the inside! That's about a 4' diameter

    > register & roughly 30' above the floor.

    >

    > _A

    > HREF="http://www.heatinghelp.com/getListed.cfm?id=

    > 98&Step=30"_To Learn More About This Contractor,

    > Click Here to Visit Their Ad in "Find A

    > Contractor"_/A_



  • Don_2
    Don_2 Member Posts: 47


    > I can't wait to see what the ductwork looks like

    > on the inside! That's about a 4' diameter

    > register & roughly 30' above the floor.

    >

    > _A

    > HREF="http://www.heatinghelp.com/getListed.cfm?id=

    > 98&Step=30"_To Learn More About This Contractor,

    > Click Here to Visit Their Ad in "Find A

    > Contractor"_/A_



  • Steve Ebels
    Steve Ebels Member Posts: 904
    Let me guess

    The "ductwork" is probably insulated flexible junk? And the low bid heating guy didn't care if he ripped up the insulation when he installed it???
  • Don_2
    Don_2 Member Posts: 47
    Poor airflow

    Cold grill due to poor airflow,grill is below dewpoint and air is above dewpoint.And then there always the high seer
    issue.Ahh dave I see you have your iaq hat on today.Four
    inch pipe did that room ever cool?Warning sign of high humidity...
  • hot_rod
    hot_rod Member Posts: 23,398
    metal not flex

    The two main trunk lines feeding this A/C ceiling supplied system are metal with external insulation. Problem is, this sits idle during the week while hot humid air builds up in the sanctuary - at the ceiling level & attic where the ducts and registers reside. We got called in to bid the remediation & restoration. Not likely that we'll get the work due to treading very, very carefully in this liability filled mine field. But, we're looking at the future of the HVAC industry here given that mold is becoming a more prevalent issue.

    The toughest go here is reaching the lofty registers for removal. They are (unfortunately) located above the pews instead of the narrow isles. Scaffolding can't remain in place over the weekends & I'm also very concerned about our safety - not just from erecting and working at those heights, but more to the point - long & short term health issues for employees. There's also air quality issues from disturbing the mold during remediation that will necessatate our recording air quality throughout the work period to minimize our liability exposure should someone decide they've suddenly taken ill from being exposed to work related release of spores. If we get the work, we'll need to have the mold tested first to determine which variety we're dealing with.

    Then there's the insurance implications! I'll be calling our insurance co this morning to inquire about what's required, if anything, beyond the coverage we already have in place.

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • JimGPE_3
    JimGPE_3 Member Posts: 240
    UV Light?

    I've attended some sales seminars on UV B light. They claim to be able to clear up problems like this.

    Strile Aire is the mfr, I believe. The guy is an industrial hygenist and SEEMS to know what he's talking about and has had some success whith just what you are seeing.

    Jim.
  • hot_rod
    hot_rod Member Posts: 23,398
    UV

    Unfortunately, UV is limited in both range and direction for this type of clean up. Works great in treating coils (when installed properly) & we've installed UV on many systems. Once mold gets the foothold we're seeing here, it's a different ballgame.

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • JimGPE_3
    JimGPE_3 Member Posts: 240


    You might want to chat with the good doctor at Sterile Aire. He talked about a case that was very similar to this. Claims the only reason the mold on the diffuser can live is because mold is growing on the coil, breaking off and being deposited downstream, where it is eaten by other mold plants - or some such thing.

    Anyway, he claims to be able to cure this sort of problem. And he really likes to talk and share info.

    But once cleaned up, this looks like the perfect application for UV-B as a preventative.

    Okay, that's the end of my $0.02. You sound like you have more experience with this than I, anyway!
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