Quote Originally Posted by Raelum
20oz tanks, ....
Hmm- yer gonna go thru a lot of 20 oz tanks

Quote Originally Posted by Raelum
also an electronic solenoid would be a good idea...
Don't see how you're going to get around having one. I'd just buy one w/ a 110 coil, as you're also going to need a timer- 110 timers are cheap. You'll also need barb to thread hose fittings to fit your hose and valve body.

Quote Originally Posted by Raelum
and yes, the gauge is in PSI

the HARDEST thing seems to be calculating how much co2 is in the room, the sensors are SOOOO expensive...
Umm, once you know your flow rate, dosage is pretty straight forward- you take the cubic footage of your room , divide by a million, and multiply by 1200-1500 ( depending on the level you're looking for). Then take that # and divide by the flow rate to determine how long your valve needs to be open.

But you'll need a flowmeter calibrated in CFM .

Remember, gas released while your ventilation system is running is wasted- just blows outta the space.