Stone Spiral Posted December 31, 2016 Report Share Posted December 31, 2016 I am installing a 4" inline duct fan in the wall next to my kiln. It will run the whole time during a firing, and vent the air outside. It's not exactly creating a breeze in there when it runs (haha), but it does circulate air out of the room.In your experience, is this enough? My only other option is adding a second, and/or third, fan to the same wall (ie. a series of fans)What do you think?~ R Link to comment Share on other sites More sharing options...
Dick White Posted December 31, 2016 Report Share Posted December 31, 2016 The most effective kiln vent systems connect directly to the bottom of the kiln and draw a small amount of air through the kiln, through a duct, and directly outside. The object is to collect the stinky stuff before it gets into the room and get rid of it straight away. Link to comment Share on other sites More sharing options...
Marcia Selsor Posted December 31, 2016 Report Share Posted December 31, 2016 Actually the object is to expel the heavy toxic metals to the outside so you avoid inhalation. Medically hazardous. Marcia Link to comment Share on other sites More sharing options...
neilestrick Posted December 31, 2016 Report Share Posted December 31, 2016 Whether or not that inline fan is enough will depend on the size of the kiln and the volume of work in it, but I'm thinking it won't be enough. Your fan is probably only about 65 cfm, whereas an overhead hood system like the Vent-A-Kiln is 265 cfm, and is directly above the kiln where it can efficiently remove particulates, odors and heat. You would be better off turning your current vent into a downdraft system, and putting in another one just to pull some heat out of the room. Link to comment Share on other sites More sharing options...
Guest JBaymore Posted December 31, 2016 Report Share Posted December 31, 2016 The standard engineering control approach to ventilation has a specific order of application. 1.) Local pickup ventilation. 2.) General dilution ventilation. 3.) Air filtration. You are at number 2....before you've done #1. A vent connected directly TO the kiln is local pickup ventilation done well. Second best is a WELL DESIGNED hood system on the source that is FOR SURE picking up the effluent coming off the unit before it gets into the general room air. Either would be preferable to what you are proposing. You also need to make sure that there is make-up air flowing into the space with any system that potentially moves air out of a room. No makeup air coming in........ fan makes noise... no air is moved. See book: "Industrial Ventilation" -A.S.H.R.A.E. best, .........................john Link to comment Share on other sites More sharing options...
Magnolia Mud Research Posted December 31, 2016 Report Share Posted December 31, 2016 All 4​ steps well stated John! LT Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.