derwankel

Get one of these:

http://www.sunpentown.com/cart/wa-1210h.html

RX4+30Years=RX8

This is one of the units I was looking at, but a better price (Thanks). I was also looking at a 12,000 BTU unit to handle the summer heat load and the heat from the 8.

What size is your garage? Let me know how it works when you get it there.

I also still intend to use the 5 ton blower for venting the hot air as an aid to the portable unit as well as for dust collection.

Atacdad

I'd go ahead and build your dust collector and put a cutout on the ducting...so you can pull air through an open grate somewhere near the ceiling(where its hot), or by switching the cutout, through your dust collecting attachments. With that size of a blower, I'd guess you'd want to house it outside the garage, perhaps in its own shed attached to the garage (for sound isolation purposes and to keep the neighbors happy).
If you're worried about the negative pressure, I'd just open the garage door a crack.

The_Bean

I'm in a similar predicament. I have a three-story townhouse with the main living area directly above the garage. There are days when I can feel the heat coming up through the garage to the wood floors. I was thinking of installing two fans (on two different sides). One pulling in cool air and the other one exiting. They would be mounted in the walls between the two-by-fours. It would be possible to have these on a thermostat so they automatically kick on at a say 90 degrees.

RX4+30Years=RX8

Huh. It is not that big or noisy. This is the same blower that is used to move air for an AC unit in a 2500 sq ft or so house.

I plan to build it into the corner of the garage in about a 24"X24" floor to ceiling box with two dampers. One to switch the Intake from dust collection to a return air vent near the ceiling. The other will switch the exhaust from going into the attic to going out the return air vent near the ceiling. A single lever on the outside of the box will control them both and thus switch from ventilation mode to dust collection mode.

The portable 9000 BTU AC unit will sit next to it and exhaust it's warm air in the box above the exhaust damper into the attic. I have been able to determine that there is sufficient ventilation and insulation in the attic to handle it as long as I don't try to vent from the dust collection into the attic. If it is later determined that the attic ventilation is not sufficient to handle it, I only have to extent the vent 2 feet to a roof vent.

RX4+30Years=RX8

Do yourself a favor and insulate the floor from underneath.

The_Bean

I have insulation laid in between the ceiling joices. This is between the floor and the ceiling of the garage (sheet rock).

HollywoodHall

open the garage door ya idiot... lol what do you think you need to do. are you 12 years old? wear a t-shirt. or dont stand in it. or open the garage door. theres millions of things you can do. put a fan in your garage.. geez use your brain!

RX4+30Years=RX8

If you had read the entire thread or at least the first page, you might understand the reason for this thread rather than to try to belittle others responding to this thread.

Since you reading ability is so limited I'll explain it to you again.

I had open heart surgery (that's where they cut your chest open to try to restore blood flow to the heart) (the heart is the thing that pumps blood through your body and keeps you alive) a little over a year ago and only have 70% use of my heart (that is because my heart attack happened over 2 years ago and I did not feel it) (heart attack is what happens when you heart cannot get enough blood to it to keep it alive and part of it dies many if not most people die when this happens). I had complications with my left lung (this was caused by the blood cells irritating the lining of my lung and causing the area around it to fill up with fluid and colapse the lung) as well and cannot tolerate 90+ degree temps. I also keep my 8 in the garage to protect it and so when I want to get in it, I don't have to put up with the 90+ temps outside. The 8 generates a lot of heat in the garage after driving it. I also like to work with wood and have a complete woodshop in the garage where I not only need to control the temperature, but the humidity because I use some expensive woods to make furniture and cabinets.

My original question was how others handle the additional heat from the 8 sitting in the garage. I ended up opting to use a 5 ton fan for an exhaust fan to get rid of the extra heat as well as use it for my woodworking dust collection system. In addition I added a 9000 BTU portible AC unit that is also a dehumidifier and an industrial floor fan to circulate the air all around. Now even without insullation on the garage door, it stays at 78 degrees or below. Next I look at insulating the garage door.

Now to put it into your own vocabulary;
1. If I stay in the heat, I die
2. I like to work in my garage
3. A garage is usually a place where you park you car
4. Some people use garages for other things and to put their car in
5. My garage was hot before putting my car in it
6. My garage was hotter after putting my car in it
7. It is even hotter outside than it is in my garage
8. Because of that I can't open the garage door to cool off the car
7. I asked others if they did anything to make their garage cooler
8. I used what I had and ideas from others to fix the heat problem in my garage

Now if you cannot get that into your head, go find a 5 year old to explain it to you.

To everyone else in the thread that has listened and even offered suggestions, I thank you. Even with all the fans and the portible AC unit my elcectric bill only went up $75 a month and the garage stays at a confortable temp. The portible AC unit exhausts through a hole I cut in the bottom left side of the garage door. No drain is necessary because the exhaust from the unit evaporates the condensate and blows it out the same hole in the door. Before I go anywhere in the car. I turn off the AC from the remote control, disconnect the vent hose, get in my nice cool car and open the garage door with my homelink switch on the mirror. Sort of like Urich's place on Vegas or the Omega man.

ezrider55

I live in Spring and have a pull down stair to the attic mounted in my garage. To keep the RX8 from heating up my garage I partialy pull down the stair giving the heat a way to rise out of the garage. Since your post says you have attic above your garage get a stair installed and you will get rid of the heat and have the bonus of a lot of extra storage space. It works for me.
P.S. do not dignify the people giving you a hard time with an answer to their post. Ignore them and you will be doing all of us a favor.

RX4+30Years=RX8

Actually I have an attic stair in the master bedroom closet. I have thought about putting one in the garage, but the combo exhaust fan and dust collection system will take most of the heat out. Then the portible AC unit can handle the rest. I just checked and the temp in the garage right now is 76 with the portible unit running. It was hovering around 82 before I started insulating the garage door itself.

As for the person you mentioned, I tried to ignore it but if you look at the dates, he killed the thread until I replied in public. I did try PM'ing him and also tried just raising a flag to a moderator. I apologize for feeling that I had to reply.

In any case, I think I am getting a handle on the heat. For now though, I have 7 more door panels to insulate. I am using R-13 paper backed insulation and holding it in place with some 12 guage steel wire used normally to suspend a ceiling. I have the design completed for the combo unit and when I get it finished, I'll post a few pics.

Nubo

You sound like you still have a vigorous and ambitious attitude despite your condition and you still know how to get things DONE. A lot of work there. Makes me tired just reading about it :D

RX4+30Years=RX8

Thank you. It is not always vigorous. There are 16 21x48" panels in the door. I did three the first day, one the second, 2 the next and so on taking my time and stretching it out. Most of theem I have done in the late evening because of the heat, but with only 5 panels to go, the temp inside the garage is even bearable without the AC if I have not just pulled the car in and the AC cools things down pretty quickly when the car is first brought in.

It is just easy to work really hard when it never gets over 78. At least not for very long. It won't be too long before I'll be able to gat back to making the cabinets my wife wants for her china and still keep my 8 from sitting outside. It also makes a nice place to sit down and take a break with a cold beverage. It was all a snap once I got the bicycles hung on the wall and out of the way.

A-TXRX

My fans not only cool the garage they also remove heat form the inside of the car. When I get home I turn them on and let 'em blow for an hour or so. It actually makes a big difference. The big one came from Sam's and cost $75.00.

RX4+30Years=RX8

I have the floor model of the fan you have on a pedistal. It does move a lot of air. I hadn't thought about the big black one, but I do have my own version for that as well. It is the 5 ton AC blower that I am building to use for hot air exhausted into the attic and for my dust collection system. Only it requires 240 volts and right now I only have 120, but my load center and outlets are in place and I am waiting for the electrician to run the 6/3 feed from the garage load center to the main panel. I would have done that myself as well, but the attic is too hot for me.

I guess it is time to post a few pics of the progress to date. It's not done, but it is bearable now. I'll take some pics and post them later.

RX4+30Years=RX8

In the attached pics you can see the garage door and how I insulated it, the portable AC unit, the corner where the 5 ton blower will go when I get the power run to the load center in the garage which is currently plugged into the outlet just below the load center.

There is also a pic of the AC temp. The top number is the air inlet temp and the bottom number is the temp coming out of the unit. And the floor fan I currently use to circulate air under the car when I first drive in. At the time I took these pics it was 96 outside and I had just driven the car inside. Within 2 hours the temp was 73.