Lethal carbon monoxide poisoning in wood pellet storerooms

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.

augiedoggy

New Member
Dec 23, 2021
6
Western NY
Wood pellets off-gas CO2
So hoppers need to be vented not
sealed to the outside air. In order
to get enough CO2 from pellets you
would need a grain elevator full and
SEALED . This is most unlikely to happen
in your house with wood pellets alone
Yes, Thats my understanding of it too but the home stove hopper would need to be vented still, not because of risk of co2 buildup from the day or two the pellets reside in the hopper between fills but rather the co2 that would be pulled in from the negative pressure of the pellets dropping and to offset the space with makeup air instead of gas from the combustion chamber.
 

johneh

Minister of Fire
Dec 19, 2009
3,880
Eastern Ontario
If the hopper were totally sealed it would also be under neg pressure so CO2 would also be pulled into the combustion chamber. If the hopper is not sealed it is still under negative pressure because the pellets are being dropped or pushed into a negative pressure stove and the hopper is not sealed from the combustion chamber
I have also never seen a totally sealed hopper even with a gasket all around the top lip
 
Jan 29, 2021
156
VA, east central
Yes, Thats my understanding of it too but the home stove hopper would need to be vented still, not because of risk of co2 buildup from the day or two the pellets reside in the hopper between fills but rather the co2 that would be pulled in from the negative pressure of the pellets dropping and to offset the space with makeup air instead of gas from the combustion chamber.
What size hopper are we talking about? If it's on the stove, it ain't producing anything close to what would suffocate/kill a person.