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Old 2017-12-14, 03:47 PM
alwaysonnet alwaysonnet is offline
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Join Date: Jan 2017
Location: Ottawa
Posts: 52
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I moved in May 2017. Filters were getting dirty and I changed them every 1 month. Since I was living around construction zone I thought filters were dirty in no time. I confirmed the same thing with builder rep and they confirmed me the same. During summer time, there was no black soot on the filters.

When I turned my heat ON during the cold days (1 month prior to today), filter got too black and carpet got black around heat registers. I still have the filter with me now. I changed a filter 2 weeks back and it looks normal now. HVAC guys took out everything from the furnace and inspected everything.

black crud to a lab -> I can submit to lab. May I know where should I submit?

I paid myself for HVAC inspection. I am feeling confused what to do now?

Last edited by alwaysonnet; 2017-12-14 at 04:20 PM.
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