Ideas on how to rercilate co2 from my house to my cannabis plants?

I was curious...

I have a brand new forced air furance, with HEPA filtration, and the fan on the unit is normally always on the ON position (I have allergy problems, and we have two dogs, keeping the fan on helps filter the air more frequently).

The room where I grow is the only room that does not have a cold air intake, so my furnace system constantly sucks air from the other rooms in the house, and pumps it into my grow room (after running it through my furnace's HEPA filter).

The furnace vent in the room I am growing in is directed into my grow area.

I have a 424CFM inline fan pulling air through a carbon filter and venting into the attic space, which is well vented to the outside.

Are there any concerns I should have about this setup?

Do you think it would recirculate the co2 generated by the 4 people and two large dogs that live in my home into the plant area?

The people not so much. But if you open the outside door a few times a day you'll have enough co2 to grow.

stumps said:

The people not so much. But if you open the outside door a few times a day you'll have enough co2 to grow.

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Well I do have a window open in the room that my grow room gets its intake air from, is there a good amount of co2 in fresh air?

There is plenty to grow plants I have a window open/cracked in my main room. when it gets to cold outside I close it up.

here you go

Myself I wouldn't do any messing around with that in a place I lived.

stumps said:

Myself I wouldn't do any messing around with that in a place I lived.

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its fine
if the flame i blue it maks co2
if it red you'll be dead

BURNING HYDROCARBON FUELS:
This has been the most common method of CO2 enrichment for many years. A number of commercial growers and greenhouses use it in their larger structures. The most common fuels are propane, butane, alcohol and natural gas. Any of these fuels that burn with a blue, white or colorless flame will produce carbon dioxide, which is beneficial. If a red, orange or yellow flame is present, carbon monoxide is being generated due to incomplete combustion. Carbon monoxide is deadly to both plants and people in any but the smallest quantities. Fuels containing sulfur or sulfur compounds should not be used, as they produce by-products which are harmful.
Most commercial CO2 generators that burn these fuels are too large for small greenhouse or indoor grow room applications. Some small ones are avai fable or a Coleman lantern, bunsen burner or small gas stove can be used. All of these CO2 generators produce heat as a by-product of CO2 generation, which is rarely needed in a controlled environment grow room but may prove beneficial in winter growing and cool area greenhouses.
The rate of CO2 production is controlled by the rate at which fuel is being burned. In a gas burning CO2 generator using propane, butane or natural gas, one pound of fuel produces approximately 3 pounds of carbon dioxide gas and about 1.5 pounds of water vapor. Approximately 22,000 BTUs of heat is also added. These figures can vary if other fuels are used.
To relate this to our standard example in an 8' X 8' X 8' growing area, if you used ethyl or methyl alcohol in a gas lamp or burner at the rate of 1.3 oz. per day, we would enhance the atmospheric concentration of CO2 to 1300 PPM if the room was completely sealed.
An enrichment standard of 1300 PPM was chosen as it is assumed that 1500 PPM is ideal, and that the plants will deplete the available CO2 supply by 100 PPM per hour. Remember, the normal atmosphere contains 300 PPM of CO2. A 100% air exchange (leakage) every two hours is assumed to be the average air exchange rate in most grow rooms and tight greenhouses. If many cracks and leaks are present, this exchange rate will increase significantly, but added CO2 (above 300 PPM) will also be lost. If a vent fan is in use, disregard CO2 enrichment, as it will be blown out as fast as it is generated.
a lot of the co2 generater burn either propaine or natural gas to make co2

But that's not messing with the venting for a gas water heater. co2 scares the shit out of me. The only ga that scares me more in a home is c2h2. I've played with gasses allot more then most guys off the street. I've also given saftey classes on just about any gas you could think of.