Exhaust under house?

Has anyone done this? I feel like this would be my best option. Im in a mobile home so there isnt much of a crawlspace in the roof or vents in the roof but the area under the house is huge. Ill only be exhausting one 600w light. Was planning on cutting a couple of holes in the doorto the closet and putting cone style air filters in them. 3'x4' closet. I also think this would also make ot harder to see the heat with FLIR as there wont be a large heat signature coming out of one vent in the roof

thats how my exhaust is ducted with no problems

I did it when living in a single wide...

CARBON filter! hehehe

And make sure you have open space underneath, so the air can move/mix, dont get stuck at a point where framework boxes the air in. Maybe even a shitty fan under there to mix air.

As far as FLIR.... read up on the tech bro, not gonna matter.... they can see where the bulb is and what shape reflector you use, its not like there a big bright blob.... that shit was decades ago... Look up some newer FLIR images you'll see what I mean...

Does work nice tho, I am in Michigan, and it can get to that "leave a sink running to prevent pipes freezing" cold..... the grow room heat did wonders

Thanks for the replies guys, i thought it was a pretty good idea, just needed somebody else to tell me it was haha. The space under is massive, house it 1800sq/ft and the crawlspace is about 3' high so i think im good there. Might look into putting some other ventillation under there even though the underpinning isnt totally sealed. Thanks again

Thats what I do

Yes

Put a screen over it to keep anything from crawling in. I know it's exhaust but I would still cover it.