Quote Originally Posted by PharmaCan
This is idiotic advice!!!

Do not ever vent any gas appliance anywhere other than to outside. Carbon Monoxice is a by product of combustion and it will kill you!

Venting gas appliances to the inside of your house will kill you!!!

Jeez, Khronic, get your head out of your ass and think before you post something like this. Bad grow advice can only ruin someone's crop. This kind of shit will get someone dead!

PC imp:
First of all, many natural gas hot water heaters do not have vents, and just vent straight to the basement anyway! They don't burn enough gas that there is a danger of CO poisoning, but they do produce CO2. Gas ovens also vent directly to the air and probably use more fuel than a hot water heater. Your furnace, on the other had burns LOTS of gas, and to my credit I did say not to vent that into your basement. However, there is such a thing as a ventless heater, that is meant for heating indoor areas. These are designed to vent directly into the indoor air, and before you ask, no, they will not kill you.

Second of all, anything that burns gas will ONLY produce CO if there isn't enough ambient oxygen. If you have 50 plants in the basement, there will be, if they have any size to them.

Third of all, most new gas-burning appliances, furnaces included, will have an oxygen sensor that shuts off the gas if the oxygen drops to around 18%. This is nowhere near low enough to cause hypoxia or produce carbon monoxide. Admittedly, I probably should have mentioned that you should check and see if your appliances have these sensors if you want to be on the safe side.