Wow! talk about the miles on this "simple" question. I missed it being posted a few days back. Ellen, I'm sure these fine people have given you your monies worth, and I'm not going to be much help, but man do those Glenwoods look nice! you said you're using a Surdiac right now. May I ask which one? I bought a Gotha 513 about 20 yrs ago, (cause the price was right), but am not very enthusiastic about the style. But it will roast out my 1500sq/ft farmhouse if I'm not careful. I'm assuming you're a pro at yours. Would you mind if I PMd you some-time for some tips? Here's a pic of my 513.