Englander 17-VL and EPA testing

Anybody know why there are two wildly different sets of numbers for the 17VL?
http://www.epa.gov/oecaerth/resources/publications/monitoring/caa/woodstoves/certifiedwood.pdf

I can only think two reasons, but I'd be open to others. Maybe Mike can comment on it.

1. One stove was sent for testing, testing results were not what was expected, so stove was modified and sent for new testing.
2. There are two slightly different versions of this stove floating around.

Ok, I can think of a third reason....Clerical!

Good to see that your Hearth-dar is working...

billb3 said:

Am I reading it wrong ?
I only see a difference in BTU.

Click to expand...

No, that's the only difference. But a difference between 19k and 43k is huge. I probably shouldn't have said "set" of numbers...