Very reasonable information, Jim. I sure wish they could prove one way or the other this issue of " spay agents". What makes me wonder either way is the Blogger says "I have to note here that I’m not 100% sure that XPS is made with HFC-134a; ". I see the comparisons to pay back, but it is based on this unsure aspect. The hearsay I have been exposed to says they have stopped using the bad spray agents.

There is a lot of questionable practices going on these days, are they hype or seriously real, I know not. Fracking for natural gas, and/or in oil sands is one in question, is it really worth it? Trying to chase all the attached energies to a product is near mind boggling. Keep It Simple Sally.