Be careful with the information given. I once bought a "non-smoker" L7 amp from a guy in W1 land. I suspect he was correct and did not smoke, but his shack was heated with a leaky wood stove. Took me over a year of airing out and cleaning that L7 B4 I could bring it into the house. I love a good wood stove fire, but.........73 bob de w9ge