Quote from: Elder III on November 10, 2017, 08:41:41 PM

Quote from: xppb00 on November 10, 2017, 01:53:31 PM

Quote from: soothaa on November 09, 2017, 09:53:20 PM

Quote from: xppb00 on November 09, 2017, 09:43:56 PM

I am wondering that adding exhaust fan makes any difference on top of the current setup? Please advise.

You're wondering if venting heated air will make the place cooler..?

Yes, technically I want to know it really helps cooling the room.

Quote from: Elder III on November 09, 2017, 10:13:07 PM

Adding more exhaust capacity to get that hot air out is very important. 90F is not too hot for the hardware to be safe running 24/7 as long as you can exhaust that hot air out of there and keep the GPU temperatures safe. How hot are your GPUs running when it's 90 F in the room?

They are about 75-78F when it is 90F. Temps are here : https://ibb.co/kuBbAw

Quote from: Marvell2 on November 09, 2017, 10:13:32 PM

AC is a waste of electricity unless you have free power, your exhuast fans need to be ABOVE your rigs not in at the same level and you also need to make sure your room is somewhat presurerized

you can tell this by when you open the doors you feel the suction of the exhaust fans pulling heat up.

I have 30 rigs in my garage with only 1 of six exhasut fans going and my temps are like 30 degreees in winter, fall with three fans going like 60

How big size is the exhaust fans? I wonder what type is the most useful for venting.

Option 1 : http://www.globalindustrial.com/p/hvac/exhaust-fans/exhaust-and-supply/24in-heavy-duty-exhaust-fan-with-integrated-shutter-if24-4100-cfm?infoParam.campaignId=T9F&gclid=EAIaIQobChMIicG6v5K01wIVhoWzCh2UqwtCEAYYBCABEgIMOvD_BwE

Option 2 : http://www.globalindustrial.com/p/hvac/fans/blower/portable-ventilation-fan-12-inch-with-32-feet-flexible-ducting?infoParam.campaignId=T9F&gclid=EAIaIQobChMIicG6v5K01wIVhoWzCh2UqwtCEAYYAiABEgI5kvD_BwE

I want to test Option 2 to vent the heated air to see if it works better.

@Phil : Sorry to dive into your conversation.

If you have your GPUs only running the fans at 30-40% or so and your temps are still only in the 70s Celsius (going by the image you linked) then you really are doing great. If you would run your fans at 60-65% you would have lower GPU temps and still have plenty of longevity for the fans themselves.

I think the only thing you really need to be worrying about is ditching that AC unit and getting some good industrial exhaust fans installed... that will save you allot each month on your electric bill and keep things just as cool and probably cooler.

So this discussion has me thinking too

Its getting cold here and my intake fan i use to bring in cool filtered air into my basement is basically freezing the entire house when we get to sub 15 degree temps, woke up feeling like an icicle last night so I picked up this

then plugged in the cord for the exhaust fan (2500CFM job)
sorry for the bad fan images its an intake exhaust fan set currently to perma intake,
Like the previous poster I found exhaust does not work at all if its on the same level of your miners , plus my basement is huge around 1200 feet and thee
fan is in the only window which is actually a windowsill and that is way across from where the rigs are, around 10 feet away.

Side not, I ran this fan all last year with great results summer and winter the one issue I had was the excessive amount of dust brought into my basement
so this fall I created this custom filter using re-usable/washable filters. Seems to be helping so far, at least stopping all the bugs and larger particles
we shall see. Hopefully this gives other folks some ideas, believe me filtering intake are is crucial, dust really accumulates on those rig fans and motherboards
and it can cause major static issues.

anyways back to my question.

SO this new lux thermostat thing works great, the only problem is my miners are across the room from the intake fan where the temp is set to 78 degrees on the lux

what that means is it only takes around 15 mins of the fan not running for the temps hit my target temp of 78 degrees , then only 5 mins or so of running to cool that side of the room again back to my target

temp.

I worry if the constant starting stopping of the fan (its industrial grade) could damage it ?

Another option maybe is to run a extension cable to the mining area and then put the thermostat plug there ? maybe using the higher temperature of that area (82 degrees) could increase the delay before the fan kicks in.

Either way the current system is working for now, but there has to be a better way ?