combustion gas analyizer - help

[Jersey Bill]

Over the summer I bought a cheap combustion gas analyizer. With the wood boiler now in full swing, I started trying to figure it out.
I got it connected, and running. I figured out the companion PC software and got the usb-serial link working.
I scanned a tag from the printer output on the device.
The spreadsheet was an import from a MDB table into excel.
If I look at the data with their tool, GAS1 is really %O2, GAS2 is CO. The other columns were harder to figure out. Parameter 60 was the flue gas temp, in deg c. , I added another column to compute *f.
Other data that their tool gives, take sample #13 for example CO2=7.1, eff net=68.1, eff=78.7, eff cond=68.1, loss net%=21.9, loss gross%=24.3, PI C/GIC=0.06, PI/GIG=0.3, CO ref ppm=518

for the data set, the last 5 readings (8-13) were taken while the boiler was in the middle of a long burn. Sample 3 was taken with the door open(high air, high temp). sample 4 was taken with all air shut, high CO.
Can anybody help interpret these numbers ?
Is my wood boiler burning efficiently?

Thanks

 

[TCaldwell]

jersey, try contacting the manufacturer, they might put you in contact with the engineer that designed the parameters for the effiency calculations, the o2% , ambient temp and flue gas temp are sampled, the co2% is calculated, based on the forementioned and effiency math is also based on a specific moisture content of the wood. heaterman has a testo flue gas analyser with 3 m/c options that influence net and gross effiency. my testo 327 a cheaper one has a 10% factor for wood m/c that it uses for effiency. co2, comes and goes with the wood burning process, o2 ranging from 4 to 7% is what testo suggested.

 

[Jersey Bill]

thanks.
Its starting to come together. I figured out to export the data with relevant headings. Then I sorted by stack temperature and I have a chart that means something. What it means i have yet to discover.
I did notice some trends:
The CO is only above 1000 if I am at a low burn, or really high burn.
the % O2 is high when stack temp is low, and low when the stack temp is high. the curve decreases quickly as stack temps go above 500 f
the %CO2 increases quickly as stack temps go above 500

Am I missing something or is the data telling me that I should be burning between 500-550 ?
Shouldn't I be trying to maximize CO2?
This is great data!