Hey everyone! I'm pretty new at all this stuff related to personal kegerator setups and home bars, but I wanted to give it a shot. I was looking to get a triple faucet kegerator and was hoping to be able to have a stout and ales/lagers on tap at the same time, but the more I researched the more I realized that a nitrogen-dominant nitrogen/CO2 mix is required for stouts, whereas a different blend is required for ales and lagers. I was considering buying a Micromatic gas blending device, but I'm not sure how I would install this or keep the gas tanks inside the kegerator. Any info or suggestions would be greatly appreciated, because I'm a bit of a rookie. Thanks for the help!
For the system you describe you would need separate tanks and regulators. 100% CO2 and also pre mixed 25% CO2 / 75% N. The pre-mix is variously called beer gas, Guinness Gas, G Gas and sometimes it just has a number. But your supplier should know what you need. Try to get 75%N and not 90%N blend or something else. A blender will not work in this situation because the only blender currently available that has a single output of 25/75 is from Micromatic and it has a fixed output pressure of 47 psi. You would need to step that down with a secondary regulator. Mounting all that junk, plus the cost, is not practical. You do not need or want 60/40 or 75/25. Those blends are not intended for use in a kegerator. So, get a pre mixed bottle of G Gas and the proper regulator. Some suppliers put the gas in a N tank which will have a male attachment, others place the blend in a standard CO2 tank, but this is less common. Get 100% CO2 and run that as usual for a kegerators. You'll of course need the proper N faucet as well. And do not expect to place all of this gear inside a three faucet kegerators. Maybe if you have three sixtels you can have enough room but there is no magic trick to creating space here. Cheers.