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Post by jliebler on Feb 26, 2015 18:47:19 GMT -8
I think Chaz has suggested the solution! The electrostatic air cleaner found in many forced air heating systems which uses high DC voltages, fine wires and removable, cleanable metal plates. Once the flue gasses have been cooled, by a big enough bell, they can be passed through such a "cleaner" with negligible restriction of flow.
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Post by hallinen on Feb 2, 2019 21:08:50 GMT -8
This thread has been quiet for awhile. I was wondering if anyone has actually tested their chimney exhaust for PM 2.5. PM, which stands for particulate matter, when less than 2.5 microns, is the nasty stuff that causes lung and heart damage.
I've been looking at PM 2.5 meters and have written to tech support asking if they could be used for testing chimney exhaust. I imagine Peterburg's testo tuned designs would logically have the lowest output, but am wondering if other factors affect PM 2.5 output, such as bell design.
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Post by peterberg on Feb 3, 2019 1:36:57 GMT -8
Hi Hallinen, welcome to the boards.
Some of the batchrocket designs are tested for PM 2.5 in the past years. The European norm for 2022 is <= 40 mg/m³ exhaust gases. Of the three tests I am aware of the numbers are about half of that, 20 mg/m³. All of those heaters were bell designs which tend to collect fine dust at the bottom.
I wrote a post about this lately but can't find it just now.
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