Ethanol fumes set off CO/Gas Detector?!

After transferring my saison to the secondary the other night (downstairs in my basement), I was cleaning out the fermenter in the kitchen sink. The beer had a good amount of ethanol notes in the aroma, but nothing too overpowering. After rousing the yeast cake with a couple of rinses and dumping into the sink, the kitchen filled with ethanol fumes. After two quick rinses, I filled up the fermenter to the top added some oxy clean and was just about to move it from the sink when the kitchen CO/Gas detector went off. The display said alternated between "GAS" and "228" (ppm). The detector was about 8ft away from the sink. Obviously, this freaked me out, but not as much as it freaked out my wife, seeing as how we have two young children.

I typically ferment in a storage area of my basement. My basement is 80% finished, with 20% walled off for storage. In this storage area are also my water heater and furnace.

I am attacking this from the angle that any measurable levels of combustible gas are unacceptable.
So, a couple of questions:
1) Has anyone encountered this before?
2) During fermentation, how much of this is released into the air that could potentially ignite given the somewhat close proximity (10-12ft) to two pilot lights?



TL;DR: fumes from fermenter set off CO/Gas detector, what the fuck?

 

CO2 is odorless. Originally, that was my assumption as well. However, this is a CO detector, I couldn't find any info of it detecting CO2 as well (just CO, radon, and natural gas). Could I have released some CO into the air (also odorless) while cleaning out the yeast? I have no idea.

EDIT: And as far as the abv, the beer is projected to be in the 6-7% range. I didn't take a reading at transfer

 

Ok, but still, my detector does not detect CO2. So something else was setting off the alarm.

 

Plausible, yes. I checked the stove and all other potential devices and everything seemed OK. The device is not very old, maybe about a year. However, my wife decided to do a test to see if it was in fact the beer yesterday while I was at work. She took the detector to the basement and plugged it in near the fermenter filled with oxy clean. The blow off jug and two oak spirals (in unsealed ziplock) were also in the area, and the detector went off again. That is two alarms from two separate locations from the same equipment. Can't be a rogue alarm.

I cleaned everything up last night when I got home from work and set the alarm in the basement where all my equipment is. No alarms all night and so far today.

 

Because ethanol is the other byproduct of fermentation and it had that fusel alcohol smell.

 

Ha. No, not the oxyclean. The oak spirals and blow off jug were giving off the same smell. I have used oxyclean many times in the area of the detector with no alarm.

Sorry, if I am being confusing, but you're not following me here....
I have three CO detectors in my house, only the one near the fumes went off.

 

I honestly do not know if it was the ethanol, I was just assuming based on it not being the CO2, due to the type of detector. I know we do not have a CO problem, my wife asked a family member to come over today with a reader and we were fine. That is interesting about the oxyclean potentially causing this.