Englander PDV-25 Airflow Path Questions

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Hot Foot

Member
Dec 25, 2015
88
Warwick, RI
Hey guys and gals, I wanted to ask if someone could please describe the airflow path from the OAK through to the exhaust. I can visualize the basic path but a couple of areas aren't completely clear to me. For example where does the air supply enter the burnpot? Also, if the openings on the sides of the burnpot provide air to the burn, what is the purpose of the small square openings below the burn pot? It seems that the air flows out the openings above and through the wearplate to the large round opening below the feed tube, to the exhaust. Any replies are greatly appreciated.
 
[Hearth.com] Englander PDV-25 Airflow Path Questions
Here is a sketch I've seen to give you a idea what it looks like in the heat exchange
 
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Thanks Chris! There doesn't seem to be a lot of specific information available on the web to illustrate the air flow path. I'm trying to decide whether or not to try plugging the square holes to increase air to the upper burnpot area. I plugged the two large round holes. That helped quite a bit.
 
I believe those holes are for the air wash to keep the glass clean..
I know that there are two square holes at the top right and left of the door opening for the air wash. I'm asking about the two round holes inside the bottom of the burnpot, under the wear plate. Thanks, Joe
 
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