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New type of 100% efficiency furnace?

Nhaggard07
Nhaggard07 Member Posts: 4
in Gas Heating
My buddy sent me this one today. The things some people do.. wow.


Comments

  • HVACNUT
    HVACNUT Member Posts: 6,342
    It doesn't look like an electric furnace. 
    MaxMercy
  • Nhaggard07
    Nhaggard07 Member Posts: 4
    No sir, it's not. I was commenting at the exhaust being ran straight into the plenum..
    delcrossv
  • pecmsg
    pecmsg Member Posts: 5,301
    All that corrosion says different!
  • delcrossv
    delcrossv Member Posts: 1,357
    Well, the person won't be complaining for long. 😬
    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
  • pedmec
    pedmec Member Posts: 1,070
    is that a suicide install?
  • Steamhead
    Steamhead Member Posts: 17,387
    You can't fix stupid!
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
    delcrossv
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,507
    There is a reason for permits, inspections and having a license.
    jimna01
  • HVACNUT
    HVACNUT Member Posts: 6,342
    Nhaggard07 said:
    No sir, it's not. I was commenting at the exhaust being ran straight into the plenum..
    Yeah, I see... kind of. Let's see a shot from the side that shows it's BS.
  • delcrossv
    delcrossv Member Posts: 1,357
    Steamhead said:

    You can't fix stupid!


    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
    Steamhead
  • exqheat
    exqheat Member Posts: 194
    The logic is exquisite.
    I disagree with the assumptions.
    John Cockerill Exquisite Heat www.exqheat.com Precisions boiler control from indoor reset.
  • JUGHNE
    JUGHNE Member Posts: 11,279
    The few (lowboy) oil furnaces I have worked on would have the first 3-4' of exhaust in the RA plenum just above the blower.

    Perhaps this 6" goes thru the SA plenum and exits the other side.....might explain the condensation leaking out of the lower fittings.
    mattmia2MaxMercy
  • mattmia2
    mattmia2 Member Posts: 10,959
    JUGHNE said:

    The few (lowboy) oil furnaces I have worked on would have the first 3-4' of exhaust in the RA plenum just above the blower.

    Perhaps this 6" goes thru the SA plenum and exits the other side.....might explain the condensation leaking out of the lower fittings.

    i cam here to ask the same thing. is it like an old lowboy where where the vent ran out the back above the blower.

    also, the combustion efficiency isn't 100% so it isn't 100% efficient even if it vents in to the supply plenum.
  • JUGHNE
    JUGHNE Member Posts: 11,279
    This looks to be a plain jane 80% furnace, blower on the bottom, AC coil above burner.

    They may have thought by putting the exhaust pipe in the air stream they could milk more heat out of the furnace.
  • mattmia2
    mattmia2 Member Posts: 10,959
    Or decided to go through instead of around. The proximity of the vent and the filter in those lowboys seemed to be an issue.
  • MaxMercy
    MaxMercy Member Posts: 518
    edited March 26
    JUGHNE said:



    They may have thought by putting the exhaust pipe in the air stream they could milk more heat out of the furnace.

    Hopefully it's a one piece pipe inside the plenum at least - until it rots of course...

  • HVACNUT
    HVACNUT Member Posts: 6,342
    It's an optical illusion. I don't see a clinch collar. I don't see any flange or masking or retort cement where they (supposedly) meet. I'm sure if the angle was 90° from what we're looking at, we'd see there's no penetration. 
    Unfortunately we can't see where the water heater flue is going.
    Anyway, I call BS.
    PRR

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