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  1. J

    Portable AC, Bad Negative Pressure

    Can you tell me if this is bad? It looks like these coils are leaking coolant maybe?
  2. J

    Negative Pressure Causing Damage

    I will post pics of what I come up with and let you know how it works. Stay tuned in ;)
  3. J

    Negative Pressure Causing Damage

    I appreciate your reply but you are completely wrong lol. Do you think I'm not monitoring my RH, temperatures, etc? I know there are a lot of newbies on here but I'm not that unintelligent :bigjoint: I also stated that I have a vinyl flooring, it is the cheap roll out stuff. Not tiles. And I did...
  4. J

    Portable AC, Bad Negative Pressure

    Haha wow I feel smart. Didn't realize it was you.. So yeah I have the Whynter ARC-14SH so I'm assuming the body inside my unit should almost be identical to your tutorial I'm hoping? I am going to try and get a hold of Whynter customer service one last time, they keep being dodgy and only...
  5. J

    Portable AC, Bad Negative Pressure

    Thank you! That article is a great find. I think I may try that instead of buying a window shaker. I just got back from Lowes and the 15,000 BTU units and above are huge. I would have to build some type of wooden support outside the shed for it. Sealing my dual-hose AC unit will be a lot less...
  6. J

    Negative Pressure Causing Damage

    I would put a fan in the intake to keep up with the exhaust fan. I am not having positive pressure in the room, it's negative pressure. Every little crack in the floor and walls are sucking air through them trying to replinish and equalize pressure. I have a pull door on the front of the shed...
  7. J

    Negative Pressure Causing Damage

    What do you guys think if I installed a 400 CFM fan connected to the intake hose? Think this would equalize the pressure? My only concern is that it would be hard getting that fan to run at the same time as the actual ac unit. And it might also create a positive pressure inside the unit causing...
  8. J

    Portable AC, Bad Negative Pressure

    I can install a window ac, I'm just upset I wasted that money. If I cut a passive intake, won't it just make things worse? The ac unit is already fighting hard to keep it cool in there, and then that open airflow will just warm the place up right? What if I installed a 400 CFM fan to the...
  9. J

    Negative Pressure Causing Damage

    Thanks for the reply. I have a Whynter ARC-14SH dual-hose portable AC running right now. It is 14,000 BTUs. It was rated for a 500 square ft room. If I can get this to work, that would be great. It cost me like $570. I feel like this should be sufficient for my room.. And it's too late to get a...
  10. J

    Portable AC, Bad Negative Pressure

    Hey guys. I'm hoping someone with experience in this can help me.. I have a 12x20x8 ft grow room (1920 cu ft), very well insulated. It was actually getting too hot in the winter even lol. For this summer I installed a Whynter ARC-14SH dual-hose portable ac unit (14,000 BTUs). Everything seemed...
  11. J

    Negative Pressure Causing Damage

    So that window ac unit is working efficiently for you? I am almost considering buying one if I can't get this portable one to work. Yes the left hose is an intake, and the right is exhaust. They claimed there would be no negative pressure since it is in taking air from outside. The only problem...
  12. J

    Negative Pressure Causing Damage

    Okay I'm really hoping someone can help me out here.. There's a few ways I was thinking of dealing with this, but I want the easiest and cheapest ideas first. I have a 12x20 ft sealed grow room (1680 cubic ft) and am using a Whynter 14,000BTU dual hose ac unit (ARC-14SH). This thing is...
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