Do you have any facts/or articles on this aside from the search through google??
United States Patent 6485294
See attached pdf
(I hope this works.)
As I read this and searched the article for location related information I was unable to find a specific location for this application. Its a great article but seems a little different that the original pic, in the article the piece looks considerably different don’t you think? It seems as if the piece is a solid wrap and not an insert. Its just my thought what other info do you have on this.
Its good stuff, and sure makes for a great discussion.:mrgreen:
Yes, just when these things look simple, somebody comes up with another “improvement”.
From http://www.goodmanmfg.com/Portals/0/pdf/CB-GMS8.pdf
"Additionally, the Goodman GMS8/ GDS8/GHS8
Furnace models are designed to minimize NOx
emissions, contributing to better air quality inside
and outside of your home.*
**Goodman furnace models meeting stringent
*
California low-NOx emissions requirements are indicated
with an “X” in the model number."
Here’s another pdf.
It looks to be a a little closer design to the one in your picture.
(It’s also a lot less reading.)
The first one is just the one I am most familiar with.
See attached