2 Rooms, 1 CO2 gen,what can I do?

first idea that came to mind was to put the burner in 1 room and set it at the lvl. than the wall in the middle I would put a fan blowing in and 1 blowing out mixing that are 24/7, which would give both rooms the same saturation all the time, even in the one sides dark period and I have been trying to read alot on it.

How can I use 1 burner in 2 rooms with 1 monitor with 1 ductless A/C

Ideal would be I get 2 burners,and a 2 part ductless mini split

does it have to be one monitor? My thought could go like this:
Set up burner in room one and have a squirrel cage pulling air into room 2 (do ppl still use squirrel cages?) have 2nd monitor set in room two set to fan. when co2 lvls get to what ya want in room two fan shuts off but co2 is still on in room one and fills it appropriately. when room 2 needs more fan turns on and starts to fill it again thereby lowering room one and kicking burner back on and refills both rooms.

but your idea of two burners if you can swing it would work much better.

And there both sealed rooms I did not mention, this is why I wanted to keep everything in the 2 rooms, I think I have seen a 2 monitor enviromental system.
So your saying have the CO2 on when room 2 lvl drops to X-ppm it starts sucking to room 2 and turns off when room 2 is at peak ppm level, but room 1 will be in night time so I guess it will be turning on in that room while in dark time and leaving CO2 in the room? If I could keep both rooms at 1 constant ppm it would save alot of hassle, most in NG bill but just....does the CO2 24/7 harm i been trying to read but sooooo much crap to sift threw, the originoal way would also make the 2 rooms even temp 24/7, 24/7 same temp/co2 for both

Or would be alot more work and 2 more fans running,( andpossibly just adhd 200 ideas a second but... could i have a 3rd sealed room that just has the CO2 gen and 2 fans that are hooked up to each room. Therefor the CO2 chamber would be always at X-ppm and whatever room was daytime the ppm monitor would open the baffle vent to suck air into the room untill its reached peak ppm?

or would I need a ppm mon in the CO2 room, and 1 in each of the 2 rooms?

I wanted simple, I wasnt expecting 2 rooms but now I can, but 2 co2 and a duel multi split is adding another good chunk of $$

I think your idea of a "lung" room with 2 duct fans pulling to the rooms is the best idea. You can get one of those dual zone co2 Controllers (Matador I think or something. Look in Rose Bud Magazine they are advertised all over). This would turn the gen on if either of the rooms fell below desired level. I would suggest putting both the burner and the ducts to the rooms up high as Co2 is heavier than air and falls to the floor relatively quick (you need it on the leaves obviously, not the floor). Also put the burner as close as possible to the "exhaust" ducts.

Also, YES, you can run co2 at night, it won't do anything useful but won't do anything harmful either.