Replydid he try to fix it? i would get another tech in to look at it.
New Guest
We are moving into a 40-year-old home. We had the oil boiler serviced and the service tech said we need a new boiler, either right away or at least by the end of the season. What he said was that the "CO2 level was reading high" (no further information given).
Well, I am very confused. I looked at the readout slip he left. It lists at CO2 % of 11.5. From the research I can do on the web, this number looks just fine. Maybe he meant to say (and write) CO, not CO2? But he said (and wrote) CO2.
Here are the other numbers from the slip. Could someone let me know if it looks like we actually have a problem, or just a service tech who wants to sell a new boiler? Thanks. Oh, the existing oil boiler is an old Weil-McLain. Not sure how old it is, but clearly old. The oil burner was replaced two years ago (before we owned the house).
Fuel: L 011
O2%: 5.4
CO2%: 11.5
CO ppm: 59
Flue F: 569.2
INLT F: 46.3
NETT F: 522.9
EFF (G): 80.0
LOSSES: 20.0
XAIR %: 34.8
CO/CO2: 0.0005
CO AIR FREE: 79
PRS inH2O: 0.08
Thanks so much for any help!
Professional Member*
did he try to fix it? i would get another tech in to look at it.
Professional Member*
How old is the actual boiler? You said that the burner was two years old, but what about the rest of it? Is it as old as the house? If it's an old dinosaur then I would say replace it. Take a picture of it and post it so we can see it.
Not as lean, not as mean, but I'm still a hardcore, ass-kicking, hard charging Marine! Oohrah!
Professional Member
Have another technician look at it. Did he do any adjustments with the oil burner to achieve proper combustion? 11.5% CO2 is good.. 5.5 % O2 is good even your CO ppm is in range for an oil burner. So i'm not sure how the tech decided it needed to be replaced just based on this combustion test slip.. More information is needed here
Professional Member*
To know if the CO is in range we need to know the reading when it starts, and when it shuts down. That reading you gave I will assume is at steady state conditions. For that its not too bad, though I usually like to see it a little lower.
God Speed, Jim. We'll miss you - 2-26-23
Looks like you had a tech that wants to sell a boiler.
Professional Member
chuck!
I am impressed with your knowledge of oil burner combustion analysis!!!!!!!!
You are 100% correct!
Originally Posted by chuckcrj
true knowledge exists in knowing that you know nothing.
Professional Member*
Thanks Frank!
Not too bad on oil but I have a long way to go on gas yet. Hoping to take Jim's class sometime next year.
Professional Member
Chuck,
what analyzer do you have??
we had a TESTO 330-LL but as many of you know it got stolen!
I just got a new Bacharach PCA3 or something like that??
I like it has color!
I do not like the printer but I have the software so I just use my laptop!
The machine seems pretty tuff!
Also the printer does not have a magnet??
remind me next year about a month before your class!
I will go with you!
Frank
true knowledge exists in knowing that you know nothing.
Professional Member*
I have an older Testo 325.
Kind of slow reacting but gets the job done.
Would like to get one from Bacharach, maybe after I take the class.
Where you from? I hope to go to one in Minneapolis as that is only 100 miles from me.
Professional Member
I am from kansas city
the last time I looked they also had one in Denver and maybe kansas city but the kc one did not have what I wanted??
I can go to Minneapolis!
I go there all the time on my way to lacrosse !
i think the 325 is good
the local trane company has a 327 for $1200 right now
i only like the 330 cus it has software so i can keep all the info on my laptop!
true knowledge exists in knowing that you know nothing.
Professional Member*
KC? I get thru there once in a while, have some relatives in KS. Have to stop in and see you sometime.
What do you go to Lacrosse for?? Thats not far from me either.
Professional Member
I usually go to TRANE week long classes, usually in the winter?
also TURBOCOR training
MULTISTACK training
love 4th street and the prime rib at the Freighthouse!
where do you go in kansas>??
true knowledge exists in knowing that you know nothing.
Professional Member*
Oh, you work on the big stuffI'm just a lowly resi/light commercial tech.
Hesston area.
Professional Member
we all are just airconditioner repairmen!
if i were smart and educated I would be a lawyer, engineer doctor or atleast a computer technician?
Oh, you work on the big stuff
Hesston area.
true knowledge exists in knowing that you know nothing.
Regular Guest
I think you need another opinion.To me the temp looks a bit high and that could mean you need a good cleaning where they tear the boiler down and brush inbetween the sectional fingers.It might also mean that your flue could use a brush or two,maybe an adjustment of draft.
Professional Member*
Now that you say it that draft is a little high. Depending on where it was measured.
Professional Member
does it say the draft is POSITIVE .08 " h20?????????????
true knowledge exists in knowing that you know nothing.
Professional Member*
That would explain the smell!
I was just hoping op forgot to put the - symbol in front of it.
Professional Member
LMAO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
that would clearly explain the smell!
not anything a new boiler would fix?
true knowledge exists in knowing that you know nothing.
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