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Vega Boiler with EZ Gas Pro

PilotWerx
PilotWerx Member Posts: 8
in Gas Heating
Recently replaced a Carlin G3B with their EZ Gas Pro to fire a Vega boiler (which is nearly identical to a Biasi) with baffles.  Wondering how these numbers look? 

Comments

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,492
    no #s posted
  • PilotWerx
    PilotWerx Member Posts: 8


    My mistake.  I thought it posted in the original post.  
  • Steamhead
    Steamhead Member Posts: 17,387
    Not bad, at first glance. When you were testing, did you reduce the air supply until the CO started going up?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • PilotWerx
    PilotWerx Member Posts: 8
    Out of the box from biasi, it was around 6% O2 and 8% CO2.  Once the boiler was warm, I started to close the air band until I reached the above numbers.  Thinking the O2 can be reduced a little more.  Excess air seems a little high.  Trying to find a happy place for it to run as it is located about 3 hours from civilization and we are away during the week.  
  • Steamhead
    Steamhead Member Posts: 17,387
    You don't want to reduce the air too much. Always leave some headroom in case the fuel or air supply varies. The boiler will soot up if the air/fuel mix gets too rich.

    At this level of excess air, rising CO indicates the mixture is getting too rich. Add some air and see if you can get the CO down below 50 ppm air-free.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
    bburdEBEBRATT-Ed
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,492
    Agree with @Steamhead

    CO is supposed to be under 100 is safe under 50 is what you should get.

    If anything you need a touch more air not less.

    Watch the CO and Co2#s while adjusting..
    SuperTech
  • PilotWerx
    PilotWerx Member Posts: 8
    Much appreciate the comments and feedback.  Sadly the company who installed and got it running with the biasi configuration (subsequently would not change the settings) will not be able to get back until spring as their company will not allow me to fly them in.  So I purchased my own Testo 320 as a tool to help me learn about this. 

    Next time I am up there I will try increasing the air.  It is slightly under fired so there is room to increase the fuel too.  What are your thoughts on going up a size?  Currently at 80,000 btu and the boiler can take 110btu.  
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,492
    You're not that far off. I wouldn't do anything drastic. Just see if a little adjustment will bring the CO down. With the #s you have I would like to see the Co drop a little.

    Make sure the boiler is hot when testing a cold boiler will make more CO, Just like a pot of water on a gas stove does.
  • PilotWerx
    PilotWerx Member Posts: 8
    EBEBRATT-Ed said:
    You're not that far off. I wouldn't do anything drastic. Just see if a little adjustment will bring the CO down. With the #s you have I would like to see the Co drop a little. Make sure the boiler is hot when testing a cold boiler will make more CO, Just like a pot of water on a gas stove does.
    Hi Ed, what would be a good number to target on the CO?  Definitely has room to go either way.  We finally have snow and ice so we can back into the camp.  Seems to have been running for the last three weeks according to interior temperatures and I have not seen a fault alert.  I will put the meter on it again and try adding some more air to bring the CO down.  Truly appreciate the help as I am on my own until late spring.  Get a remote off the grid camp they said!  It would be fun they said!  
    MikeAmann
  • worldclasshvac
    worldclasshvac Member Posts: 22
    You are over fired.  You need more air or less fuel.  Ideally 6% on O2 is the target

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