Is it possible to reduce co2 from gas heating by using plants?

Question

I am thinking along the lines of ducting waste heating gases onto the roof area, then by using a turf roof or houseleeks (plants) with a perforated transparent covering over them, they would absorb the co2. The resulting gasses from the "system" would therefore contain less co2 than normal.

Even if these are on trays that are changed/composted frequently it should have an effect.

Answer 1

I have house plants in my home but never thought about this..well? It might work..You have a very intelligent mind i must say to come up with idea..I cant contradict you cause i dont have that much experience in this field..Good idea..House plants bring more O2 in the air...

Answer 2

Interesting idea, I just foresee two problems:

1. You would have to be able to closely control the concentration of CO2 in the air around the plants.  It would probably only work for a greenhouse.  

2. There are other gaseous components to exhaust gasses that would be harmful to the plants.  You would need some way to separate them from the exhaust.

Still an interesting idea.  It is possible, but not easy.