Looking for advice, I'm setting up a kegerator in a wardrobe in my bedroom and want to use it for fermentation, but limit or remove the smell issue. I was thinking of using one 19L corny to ferment in, with the CO2 produced by fermentation going into a second 19L corny. I'd then be able to vent this at a time of my choosing (ie on a daily basis instead of constant trickle of beer aroma throughout the day and night). Has anyone tried this before? If so, any info on how to connect it up? I was thinking some sort of non-return valve would be needed. Would this work, if the pressure in the CO2 keg got higher than the fermentation keg? Or would I have to try to calculate the volume of CO2 being produced and make sure I was venting the CO2 before this threshold was reached?