Me, again, Sean. Thinking a bit, your fan could be used as a draw-system by placing it between the booth and window and connecting each side of the fan housing by duct-work to the booth. A pulley change to slow it down will probably still be needed, depending on your desired air-flow. You will also probably still want to put a filter on the out-let due to previously mentioned possible external problems. A filter also might provide the needed back-pressure to make it work suitably. If you have room and resources, a small enclosure could be made with 2 or 3 filters in a door to give a better painting enviornment. Also, can't over-empasize the need for good light;natural-effect bulbs, if you can afford them. Makes life as a painter so much nicer. Have seen some of your work; keep it up. Ruste
Some of this might make more sense if I had had the sense to explain how the fan works: air is pulled-in from the fan-ends and is forced out the square-end. Sorry for the blunder. Ruste
An addition to the booth suggestions: a squirrel- cage fan needs some back-pressure to operate correctly. If it works-out right your window may be enough smaller to achieve the needed pressure.I forgot to add that you might want to add another filter at the inlet to your booth to catch particles in the flex-hose. I probably don't need to add, but in the interest of safety and frustration, there is no such thing as a paint area that is too clean. The fan-unit will need to be mounted securely, as the fan moves a lot of airand has a lot of counter-force. Youshould keep the flex as short as possible to facilitate periodic cleaning. Also your air-source should be from out of your work-area. Changing the pulley-combo will chang your air-flow. You may have to do this, as the unit was meant to supply a house-system. Keep an almost zero flow in the booth to keep from sucking-in particles from the room. An enclosed booth would be ideal, if possible. Hope this helps, good painting to you!! Ruste
Sean, this is a pusher system. Leave the unit free as it is. Install a couple of the best furnace filters you can find at the out let(may need to build a frame for this). Attatch a flex hose to your booth( you can find this at a furnace-supply co. or large home-supply outlet). This will be round and usually insulated. I would recommeng installing it at the top of your booth to create a down-flow system with out let in bottom under a baffle of some sort. This is the most effective in the real-world of painting vehicles and the like. If you can, remove the window, or at least makea sleeve to completely enclose it. I would recommend an additional filter berfore it goes out side. If you can aim the end downward to be about an inch above a deep pan of water the dimensions of the out let. Don't know how much of a bunch of idiots you have for neighbors or city inspectors, but keeping it discreet might be good. Same color as house,etc.
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