The dealer gave me a paper (not included with the owner's manual) that has the "Mini-Helic Gauge Settings." So, these are: Heat Setting 1 should read between 0.10 and 0.15. Setting 2, 0.12 to 0.17. Setting 3, 0.15 to 0.20. Setting 4, 0.20 to 0.26. And Setting 5, 0.24 to 0.30. You're probably coming close to this by keeping the gauge reading in the middle. The instructions, laconic as they are, say to adjust the combustion air flow to get the right gauge reading. I think part of my stove's problems though might very well have to do with an auger rate that's too fast. Not burning things up before sweeping them away. The fuses kind of look like auto fuses. Little glass cylinders with a strip of metal through it. I'm going to pry them out - not super easy to get to - and take them with me tomorrow.