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Combustion Analysis Results
Sorry for double posting but I put this in the wrong place initially.
Hi, I have a 2009 Weil-McLain SGO-3 oil steam boiler that has been converted to gas using a Carlin EZ-Gas gun
Burner is firing around 105k BTU vs the rated input of the boiler which is 114k
Combustion analysis indicates CO2 @ 9.5%, 300deg stack temp, 84.5% efficiency. Air band is set a bit under 20%. over fire draft=.02, breech draft=.03
Stack seems low, or not? I know the efficiency is calculated, how accurate are they? 84.5% is higher than what the boiler is rated for using an oil gun.
I have complained in the past about a loud low pitched rumble from this setup and the adjustment of the airband to its current location has made an appreciable difference in this sound.
I had a tech out because of the rumble noise but also because I had a stainless flue liner installed several months ago and I wanted to have the combustion and draft checked/adjusted