I have heated my house with firewood since I bought it (only 10) years and started with two EBay Stihl saws. I have a 029 I paid $150 for with a new 24" Oregon bar and chain and a 066 I paid $400 for with a new Canon 32" bar and chain.
Last year I started looking for chainsaw deals. I wanted a small saw for limbing and a replacement for my 029. I was cutting firewood at a friend's house last fall. He ran an errand and when he came back he said there was an orange chain saw sitting near some garbage cans down the street. I grabbed the saw and went to the house. I asked the owner if it was his saw and he told me, "No. That’s your chain saw." It is a Husky 141. He had just put a new bar and chain on it. He said it didn't run right and the last time he used it the starter rope broke. I replaced the rope to find it needed a carb adjustment. I know it isn't the best saw but I wanted a small saw for cutting slash and the price was right.
I got a deal about a month later on a saw to replace the 029. A local shop had a Husky 266 that had sat unrepaired for 10+ years. The owner said it needed a piston and cylinder. It also came with a full-wrap bar and a 28" bar and chain. I got the saw for $40. I figured I couldn't go wrong because I could get my money back if I parted it out. I brought the saw home and put my compression tester on it. I pulled three times and got 180psi. It turns out all the vibration isolators are shot and it needed a carb rebuild and that was it.
In February of this year I was helping another friend clear a downed oak on his property. He had a Husky 40 that had a scored piston. He completely disassembled it and gave it to me in a box. I haven't done anything with that one yet. Cosmetically it looks like new on the outside. The cylinder is in great shape so I think I can get away with a new piston and ring if I want to repair it. This saw is in better shape than the beat 141 so I may do that.
Bob