Help with airflow through house ! Tent in basement top floor freezing

Alright ...got an issue I have posted before but didnt get any real answer or at least some thoughts .

Been growin a few years and I just moved and setup a new tent (s)

New house is a 4 level backsplit small home approx maybe 1400 sq ft


My large tent is in the very lowest level the basement running a 4x8 tent and a 8 inch fan 790cfm with passive intake the tent is in the same room as gas furnace and water heater also this lowest part of the house is just closed off by a louvered door to the next level .


My issue is that my tent temps are good I believe
23 c lights on and 16.5 lights off


But for some reason my very top floor of the house is freezing main level and first level of the basement is fine .

I know its due to the tent and fan ...currently not running a carbon filter on it either but plan on it ...fan is also on its lowest setting .

Is it possible the only way to fix this is to add an intake fan witha long duct to suck air from a differnt part of home ?

I could re direct the tent exhaust which now currently goes outside to the top floor of house but what a hassle and the constant noise of exhaust coming through the floor vent would be brutal .


Any ideas ?

Fan needs fresh air intake I have same problem with wood stove draft crack a window and turn down exhaust

I only need the slightest crack in my sliding door and then wood stove will draft with exhaust on lowest setting when flue is hot it will draft with door closed as my house is Swiss cheese but not if I turn exhaust up 8 inch hyper fan

Run a fresh air intake in utility room with a filter and see if it still sucks smoke in through louvers you have right amount when smoke will roll up Louvre and a tiny bit will suck in rest up into basement

how many thermostats do you have to control the heat in your house?
If theres only one on the main floor, its possible the heat isn't running because the tents are keeping the lower floors heated, which I would think the heat would keep going all the way upstairs...
If only one thermostat and having this issue try getting a thermostat with "circulation " mode that will kick the furnace fan only on for 15 mins off for 45 mins

Take a temp gun and sense the temp of your walls and floor near the wall. I suspect it may be a lack of insulation. My buddy just bought a house, he would wake up to frost on his main level floor, it was lack of insulation. He ripped into it and found asbestos, 30k later he had it fixed. Dumb fucker knew it was an asbestos house when he bought it.

Thanks for the replies this actually helps alot and yeah Nizza's reply might be accurate as well I mean it makes sense the thermostat is only on the main floor and actually its next floor up and about 6 to8 ft away ...so this all makes sense considering I am running two 400's in the tent MH and HPS I would of thought the 8 inch exhaust in the tent would be sucking all the heat out and spitting it outside but maybe I am wrong and the 4x8 tent heat is rising like nizza said ...I mean what I could do is try putting the thermostat up a few degrees to compensate and see what happens but the problem with that is house will warm up alot when I am on 12/12 cycle due to the thermostat being higher but no warmth from lights for 12 hours ...


But I think I can run a few tests either way with turning the thermostat up as that tent is on 18/6 right now .

Thanks Nizza that's thinking outside the box for sure much appreciated!


will update for sure...

I would of considered the insulation as well because its and old house but the upstairs was warm before I hooked up that tent for sure yeah dealt with alot of asbestos around here in canada alot of siding is still asbestos tile ....and homes for that matter ....

Main floor photo ...thermostat to the right on wall


Top left corner of photo where the lamp is directly underneath the floor are my tents ...