Air intake

I have built a grow room. Attached you will find the current layout. The room is segregated to two smaller rooms, each measuring 8' X 6' 8". Both rooms are attached to an uninsulated, detached garage. Also, both rooms are currently set up to operate completely independent of one another.

As can be seen in the first photo, I have fresh air being pulled in from the garage into both rooms. This will be fine in the spring, summer, and fall when temperatures are warmer. Right now, its in the mid 30's, thus the intake air will be cold. To combat this, I have installed heaters in both rooms. Lighting will be provided by LED, so I am not adding any heat there.

So, I had a thought... During the winter months, could I do as shown in the second attachment:
Block off the intake to the flower room
Shut down the exhaust fan in the veg room
Intake into the veg room only
Vent from the veg room to the flower room via ducting
Then exhaust out of the flower room.

It seems like a bit of a waste to be intaking cold air into both rooms. But there might be a reason why my proposed plan might not be a good idea.

Thoughts?

Don't see why this wouldn't work. Watch your temps and rh levels good circulation matters
SH420

Do you think I am gaining anything by adding this setup? Or am I wasting my time?

where u dumping all that warm wet air?

if it stays cold where u at 2-3 months, I would use garage as lung room .

Exhaust is to the outside via fans and carbon filiters.

I don't think it would be economical in the least to heat the garage. At that point, I think it would better just to heat the rooms separetly.

still going to have very cold air coming into warm room,it will be a snow gun in reverse=water mavbe me not c big pic peace

do u get snow-cold 2-3 months

No. For example, its 50 out right now. However, the low this morning was 34.

not that cold disregard

The only thing you are gaining is being able to complete the same task using 3 fans instead of 4. So if you already have spent the money on 4 fans then I'd say your wasting your time re-configuring it unless you need a fan for something else.

I am only using 2 fans in total. One in each room for exhaust. Intake air is passive.

My theory in my alternate setup is the instead if pulling cold air from two locations, I am only pulling cold air from one.

Then, while it is cooler out, I would only exhaust from on fan, the one in the flower room.

When it warms up, I would plug the vents between the rooms and utilize two completely independent systems.

Oh gotcha, had to re-read, heavily medicated. Yea I don't see what you'd have any problem doing that. Give it a go and just make sure to keep an eye on the temps till you get it dialed in. I mean if you can keep the temps where you want why not?