I have a Svea 123 that I have had since the 1970s. It gets used a dozen times a year or so. Still runs like a jet airplane, and thus the reason for my post. I have seen on Amazon that there is something called a "muffler" made for this stove. But it is $50, or half the price for the stove itself. My question is does this device actually work well enough to justify the expense? Bear in mind I have lived with the noise for 40+ years, but if it works I'd likely buy one. Or, does anyone here know where I might find one for a better price? And from the searching I've done today (how I found this site) it appears the Optimus 8R has now been relegated to almost unicorn status. Are they not made anymore? Darn shame as I've always wanted one. Thanks for letting me play with you folks.