Fan / Exhaust Fan question

[dragrcr890]

I have a new 34' by 30' by 13' ceiling 2x6 attached garage that is insulated to high hell... however I did not install any fans or fan boxes in the ceiling. The issue I'm having is with this heat lately SE Wisconsin the garage is extremely hot and I have to open the doors and two windows and it just sits there. The ceiling is blown in, the walls are batt. we have trees/bushes surrounding the house so air flow is cut down dramatically. I can install fan boxes and add fans however I wanted the highest ceilings possible for a lift and other things (maybe a friendly game of bags...) So what do I do? is there an exhaust fan that I can install up high to pull air out on the wall? New house so I'm trying to do the least intrusive method. any good wall mount oscilating fans? anybody have a similar issue and what they did.. Again, opening the doors just doesn't clear the air like you would think. Thanks,

 

[LS6 Tommy]

My vintage Emerson Electric oscillator works great at giving some circulation without blowing stuff all over the place...

Tommy

 

[rattle_snake]

I highly recommend a thru wall fan at the ceiling. You will also need intake vent(s) at least equal to the fan area, if you wish to operate fan with all doors closed. A timer works well to ventilate and cool in the early AM (3-5am). I also recommend a variable speed setup, as the fan can be noisy. I have installed several like this and all have worked extremely well.

Canarm 16" variable speed fan, ~$400; (any fan can be slowed down with a Triac...)


230V Fan timer and speed control; just push the cover to turn on/off at any time

 

[CN Spots]

rattle snake, are there multiple fans in your shop or is that one in the photo enough?

I have a similar problem as dragrc890 and I already have a huge fan blowing in the man door and out the two bays but the heat in the ceiling needs to be vented otherwise I'm just blowing 100 degree air in my face. The shop (and everything in it) gets preheated all day so it takes forever to get it comfortable. A set-up like rattle snake's with a temp control or timer sound like the way to go.

 

[zollster]

18" Dayton shudder exhaust fans. On the expensive side, but very well worth it.

 

[wssix99]

Subscribed. I have the same problem in the summers.

I have a HRV installed because I'm required to have ventilation by the City. It's great in the winter because it doesn't loose the heat. It's horrible in the summer because it doesn't loose the heat...

I need to see if I can remove the heat exchanger or build a bypass for it in the summer, so I can pull in cooler outside air in with it. I need to get in it twice a hear to clean the filters anyway...

 

[dragrcr890]

sounds like i'll be buying an exhaust fan. the big fan up top doesn't seem like its guna do that trick...

 

[wssix99]

sounds like i'll be buying an exhaust fan. the big fan up top doesn't seem like its guna do that trick...

If you go that route, you can also get a whole house ventillator, like this one. It's wall mounted and insulated. (The insulated door opens and closes when you turn the fan on/off.)

http://www.tamtech.com/store/catalo...hole-house-fan-800-cfm-with-r-10-insulated-se

(I have two of these units for cooling our house and they work really well.)

 

[Jackfre]

Check this out.
http://www.tjernlund.com/cool_breeze_garage_cooling_fan.htm

 

[rattle_snake]

rattle snake, are there multiple fans in your shop or is that one in the photo enough?

I have just one and it is enough for my 1300sq ft. Will be better when ceiling is sheathed. The S16-EVD is rated at 2300cfm. Math would indicate that fan would move one 'building worth (18k cuft)' of air in 8 min, but that is not the same as 'exchange all the air in the building'.

 

[Marctrees]

Read current thread --
http://www.garagejournal.com/forum/showthread.php?t=336478 Marc

 

[revamped]

I am in the same boat... but different area/reasons. I just want to remove welding fumes and keep air moving gently in my 40x40. I plan to order this today... http://www.northerntool.com/shop/tools/product_200460182_200460182

Can someone provide help in choosing the best controller to use since this is only a 2 speed fan? It is 115v. I just want to be able to push a button on, speed1, speed2, off.

Thanks and sorry if I hijacked your thread. I sized this fan because shear walls are all done and I don't want to do a change order so I am putting it in between the studs at 16ft high in the corner above my weld area.

 

[rattle_snake]

'Vamped, as you may have noticed from the lack of documentation, I believe the intent is to hard wire 'high' or 'low' speed inside the motor's junction box. The wiring schematic is printed on the motor and not in any canarm docs (motor is made by someone else).

Soooo, it is likely a simple 'tap' type speed control (similar to HVAC blowers) and probably could be done with a simple single pole/triple throw rotary switch (off-high-low).

 

[Styx]

I picked up a canarm 14" fan that I will be mounting at about the 16' height of the back wall of my shop. The difference is I will be rewiring mine and reversing the blades to run to draw air into the shop. The back wall is on the east side of my shop so after noon it's in the shade. open the bay door an inch or so and it will pressurize the shop with cooler air.
The thought with exhaust fans is all the air is drawn in from where ever you open it up or from any air leak in the building (base of walls) and guess what is there, dust or dirt. now it's all over your shop...
My shop is about 1000 sqft and 12' walls with attic trusses and scissor trusses.
I'll report on how it works when I'm done my build in a month or so...


Cheers Randy...

 

[machsnell]

I highly recommend a thru wall fan at the ceiling. You will also need intake vent(s) at least equal to the fan area, if you wish to operate fan with all doors closed. A timer works well to ventilate and cool in the early AM (3-5am). I also recommend a variable speed setup, as the fan can be noisy. I have installed several like this and all have worked extremely well.

Canarm 16" variable speed fan, ~$400; (any fan can be slowed down with a Triac...)


230V Fan timer and speed control; just push the cover to turn on/off at any time

Sorry to hijack but I have a northern electric fan from Northern that has 3 speeds can I use a triac and control that (to slow) even with 3 speeds?

Sent from my SM-G900V using Tapatalk

 

[Freejack]

Sorry to hijack but I have a northern electric fan from Northern that has 3 speeds can I use a triac and control that (to slow) even with 3 speeds?

Sent from my SM-G900V using Tapatalk

If its a permanent split capacitor motor, which it should be, then yes. Just use the highest speed lead connected to the triac. The other leads would not be used.

Jake

 

[Freejack]

Canarm 16" variable speed fan, ~$400; (any fan can be slowed down with a Triac...)

Just to expand on that comment real quick, any fan powered by a permanent split capacitor or shaded pole motor can be slow using a triac (sometimes called a solid-state speed control). Fans powered by split-phase or cap-start motors, usually belt driven fans, cannot be used with a triac.

Jake

 

[dragrcr890]

any updates? Has anyone actually installed one of these tjernlund fans that JackFre promotes? I'm roughly 13,000 cubic so I'm thinking a 1400cfm fan and I can turn over the air in 10 min or less. Do they really work that well? I just don't want to do all the work of installing and cutting in an exhaust fan and it barely makes a difference.

 

[dragrcr890]

Exhaust Fan Recommendation

Ok, I know I had a thread about this, but I cant find it.
so here it goes. I'm looking for a wall mount, exhaust fan, single phase, 1000-1500cfm - with automatic shutters so I don't have a bunch of cold air coming in and heat leaving when not in use. also, I'd like to be able to hard wire a switch, but I'd take a pull chain deal too.

any ideas? I've checked globalindustrial and all I find is the 14" maxxair... not many reviews...

 

[dragrcr890]

Re: Exhaust Fan Recommendation

https://www.globalindustrial.com/p/...or-115v1ph-3-speed-aluminum-shutters-9ft-cord

thoughts?

 

[346ci]

Re: Exhaust Fan Recommendation

I have a small Canarm S10-B2 wired to a thermostat, mostly for humidity. The shop is a cheap square tube with no insulation so it runs 24/7, makes a big difference in the summer time pulling the hot air out of the ceiling.

 

[n20junkie]

Re: Exhaust Fan Recommendation

I have a 24” canarm from northern with the variable speed option which is nice.

When I want a general draft, I let it idle slowly, when painting or firing methanol cars it gets cranked up and sprays the neighborhood with merica.

 

[XJSuperman]

Re: Exhaust Fan Recommendation

Bump, Im looking for the same thing I guess. Id like to get a smaller exhaust fan for welding fumes, painting, general venting, etc in my 3 car garage. I don't want a 24" hole in the garage wall, so smaller but still powerful is desired.

Any thoughts or recommendations? I was hoping to resurrect an existing thread instead of making a new one.

 

[Ainsley]

Re: Exhaust Fan Recommendation

I use a direct drive squirrel cage mounted to the wall with gravity shutters. you can kinda see it in the top right of this photo:

It is tied into my ventilation contols

 

[kbs2244]

Re: Exhaust Fan Recommendation

I haven't checked the CFM but stove hoods are exhaust fans.

 

[climb.on]

Re: Exhaust Fan Recommendation

I went with this 24" fan, pretty happy with it so far. A lot depends on what you are trying to exhaust. You can always put a variable speed control on it and pull less air. Sure is nice to be able to crank it up when needed. If I did it again, I wouldn't mind having even a bit more.

I need to build a inside cover seal for it. The louvers don't seal up real well. I don't think any really do.

 

[HOTFR8]

Two topics merged.

 

[PhantomEB]

I am just gonna run two vents ran thru two 4-8” inline fans that will be on a switch to run both at same time then out the gable over the big door. Should be good enough to move fumes and smoke out of the shop as the vents will be placed over the hood of the bronco as well same spot in the other bay.