Thanks for your prompt reply and I did order the orifice rom Aberdeen and received it yesterday, very fast shipping. I know you said in your reply that if I am unsure how to install that it is best to call a HVAC technician, but I would like to ask you help a bit more as I am helping my sister with ...

Four years old in sister's manufactured home, called me today, rattling noice from inducer housing. Unscrewed the housing with the 3 screws, then removed the perimeter screws and seperated it, debris inside largest piece was a semi circle brittle tanish color material and other small parts of same m...