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post #1 of 10 (permalink) Old 07-21-2012, 12:16 PM Thread Starter
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Default Shop heat and air

I need some input from you guys and gals on the forums. I am considering adding some kind of heat and air to my shop/garage. I have been looking at the heat pump systems and was wondering if any of you have had any experience with them and whether they are workable in a shop environment. I do have a dust filtration system, but was wondering if the dust environment would be too much for these units. My garage/shop is around 400 sq. ft. so the 14k BTU units should be sufficient without breaking the bank. Thanks in advance for any replies and/or suggestions.

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post #2 of 10 (permalink) Old 07-21-2012, 06:44 PM
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Dust should not be a big issue, just change/clean the filter more often than in the house. The unit I have in my house has the heat pump and it does a fine job heating.

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post #3 of 10 (permalink) Old 07-21-2012, 07:09 PM
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You may want to consider the Mr. Slim unit from Mitsubishi. We installed one in a 300 sq. ft. addition we put on our home a few years ago. The unit both cools and heats and runs almost silently. We needed a solution for the addition because we could not tie into the existing duct work. The really nice thing about the unit is that it only requires a 3 inch hole in the outside wall. Here's a link to a You Tube video. It's pretty much of an Infomercial but it will give you most of the facts: Mitsubishi Mr. Slim Ductless Air Conditioner - Buy Online & Save! - YouTube

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post #4 of 10 (permalink) Old 07-21-2012, 08:09 PM Thread Starter
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Thanks guys. The Mr. Slim was the main one I was checking out although there seems to be quite a number of systems available out there. I guess I will just have to keep on comparing to figure out the best one for the money.

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post #5 of 10 (permalink) Old 07-22-2012, 02:29 AM
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I put in a system similar to the Mitsubishi, a Daikin system inverter. It services the entire basement using 3 ports so each area is separate. I did this to keep the shop isolated from the rest of the house.

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post #6 of 10 (permalink) Old 07-22-2012, 03:17 AM
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air; open my garage door
heat; turn all the lights on. Oh wait! I do that anyway.
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post #7 of 10 (permalink) Old 07-22-2012, 06:40 AM
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The one thing to keep in mind is where your ducts are placed. You want to make sure they are placed in a way that when you are using finishes they dont kick up dust or blow directly on your projects.The only complaint I heard of with the Mitsubishi is that the fan always runs.Depending where you are a 1 1/2 ton heat pump will work well. I just got a price on a 2 ton for my shop which is 800 sqft.
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post #8 of 10 (permalink) Old 07-22-2012, 10:38 AM
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I've got a small shop, and it's fairly well shaded. My air is open the window in the back and turn the fan in front of it on - blows air thru the shop and out the door. Make is comfortable enough, even on the hot days; I'll stick with this.

Heat in the winter is the real issue. I'm not fantastically thrilled with the setup I presently have, it takes about 15 minutes or so to get it fairly comfortable, but it's faster, and better, than the system I had before. Bottom line is, it does work, and I don't have to sink money into something else.

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post #9 of 10 (permalink) Old 07-23-2012, 12:48 PM
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I have a portable unit that can be moved around. It is on rollers and light enough that it can be lifted if needed. It has 1400 btu ac and heat pump technology. It operates on 115v so can be plugged in anywhere. We have used it in the house when our home unit had problems and the hvac company was so busy they could not get to us for a day or 2.
I would insulate your shop if possible and clean the filters often so the unit will be as efficient as possible. I like the portability of the unit but a through the wall or window unit would also work.
I still need to get my shop insulated but the unit has worked alright even without the insulation. I need to move mine back to the shop so I can get back out there and get a few thing finished and new projects started.

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post #10 of 10 (permalink) Old 07-23-2012, 02:35 PM
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George, you are on the right track - use something electric. Do not use gas! Wood dust and volatile solvents don't mix well with flames...or maybe I should have said they don't mix favorably with flames! Fujitzu also makes a very fine unit! No ductwork is required.


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