Results 1 to 9 of 9

Thread: Arizona A/C Recommendation

  1. #1
    Join Date
    Jun 2007
    Location
    Scottsdale, AZ
    Posts
    73

    Arizona A/C Recommendation

    It is 100 degrees and going up! My woodshop is 29x29. 2 block walls, common wall with house and garage-door wall which is insulated. Flat roof. Passage door on block wall.

    What can I do to cool this? HOA (non functioning) CCNRs say no roof mount. Cutting through the block wall is not too appealing.

    Is there some type of A/C that can sit in the passage doorway? Is it too expensive to run it with an open door? What voltage?

    Is there some other solution? Speedo and a fan ?

    I am reluctant to use evaporative cooling since some of my tools have light rust due to high humidity during one of our infrequent rains.

    Have I asked a question that has an answer?

    Jerry

  2. #2
    I've worked in a large woodworking shop that is cooled with evap for the last 3 years. No evidence of rust whatsoever. I don't think you have to worry about that. I think evap is your best, and cheapest solution.

  3. #3
    Join Date
    Aug 2006
    Location
    Rio Rancho, NM
    Posts
    2,567
    We have a swamp cooler on our wood shop also, and we have absolutely no problems with rust. We have a Unisaw that has never seen a speck of run--since we bought it in 1993!!
    Nancy Laird
    Owner - D&N Specialties, Rio Rancho, New Mexico
    Woodworker, turner, laser engraver; RETIRED!
    Lasers - ULS M-20 (20W) & M-360 (40W), Corel X4 and X3
    SMC is user supported. http://www.sawmillcreek.org/donate.php
    ___________________________
    It's nice to be important, but it's more important to be nice.

  4. #4
    Join Date
    Nov 2007
    Location
    The sandy wastes of Tucson, Sonora Desert, Baja Arizona, USA
    Posts
    40
    It's easy enough to mount a side-draft cooler on a cart, and move it into a doorway, etc. Just make sure you've got cross-ventilation. It won't help you during the monsoon too much, of course...

  5. #5
    Join Date
    Nov 2007
    Location
    Glendale, AZ
    Posts
    278
    Jerry,

    I tried the portable AC unit from HD. Vented it through the door. Did squat.

    Tried the largest evap unit I could fine. Did OK until monsoon and/or 110 plus. The it did zip.

    Just did a lot of insulation, which is key no matter what. You need to retain the cooled air so the unit is cooling it over and over. If the garage reaches 120 (mine was hitting 130), the best the AC unit can output on the first pass is somewhere around 98. The insulation allows it to cool the same air again, getting it down to a more comfortable range.

    I went a bit overboard and installed a 2 ton unit outside. Small 1 1/2" hole through the garage wall to connect the air handler. It barely has to run to keep things at 80, even when it's 110. There's nothing for the HOA to see.

    Jim

  6. #6
    Join Date
    Apr 2006
    Location
    Phoenix AZ Area
    Posts
    2,487
    Jerry,
    I just installed a 2 ton mini-split heat pump in my 3 car garage in Tempe. I haven't really run it much yet, but it's an 18 SEER unit that should be reasonably efficient. In max cool mode it draws 12.3A @ 220V per an amp meter clamped on. This one required a 3" hole through the wall. I considered a swamp cooler, but I hate the humid feeling, and I assumed that the wood would move too much with the humidity changes. I don't have insulated walls, but the ceiling is well insulated. Total cost for my system was around $2500 installed.

    With concrete block walls, and likely no insulation, the walls will act as a thermal mass, taking longer to cool down, and then take longer to heat back up. I also assume the ceiling is uninsulated. A swamp cooler will be by far the cheapest, but you will still have the lack of insulation problem. How much are you prepared to invest in time and money? I insulated my garage doors and that helped a ton before I added the AC.

    joe
    Last edited by Joe Jensen; 06-04-2008 at 3:54 AM.

  7. #7
    Join Date
    Mar 2003
    Location
    SE PA - Central Bucks County
    Posts
    57,906
    One suggestion would be a "mini split" system. They are reasonable in cost, easy to install and somewhat efficient.
    --

    The most expensive tool is the one you buy "cheaply" and often...

  8. #8
    Join Date
    Apr 2006
    Location
    Phoenix AZ Area
    Posts
    2,487
    Quote Originally Posted by Jim Becker View Post
    One suggestion would be a "mini split" system. They are reasonable in cost, easy to install and somewhat efficient.
    Jim, my mini-split is amazing. Where you are you don't likely have too many cooling days, but here in AZ it's awesome. Based on some initial usage, I think I can keep it cool from 7am-9pm on a Sat for less than $2 in electric

  9. #9
    Join Date
    Jun 2007
    Location
    Scottsdale, AZ
    Posts
    73
    Thanks for the suggestions, guys. I knew I could count on you for some good ideas.

    Jerry

Similar Threads

  1. Cracking up in Arizona
    By Troy Donson in forum Turner's Forum
    Replies: 28
    Last Post: 03-24-2008, 8:52 PM
  2. Miter Saw Blade recommendation
    By Matt Meiser in forum General Woodworking and Power Tools
    Replies: 6
    Last Post: 07-18-2007, 6:49 PM
  3. 3D Acrylic Bottle Stoppers from Arizona Silhouette...
    By Ken Fitzgerald in forum Turner's Forum
    Replies: 10
    Last Post: 07-10-2007, 11:06 PM
  4. Need Digital Camera recommendation
    By Joseph N. Myers in forum Off Topic Forum
    Replies: 14
    Last Post: 02-08-2006, 5:44 AM
  5. Bandsaw recommendation - sorry
    By Ken Miller in forum General Woodworking and Power Tools
    Replies: 7
    Last Post: 07-25-2005, 3:44 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •