...and I couldn't be happier. Back in November I ordered some vinyl replacement windows to replace my house's 1970's single pane original equipment windows and storms. My main level digital thermostat is set for 68 degrees during the waking hours, and that's pretty much where the room stays. My woodstove historically has taken the lions share of keeping that temperature, but I could very seldom get that temp to rise above it. Well, the windows on the upper levels of the home have been all replaced today - the lower level where the stove is gets done tomorrow, and I"m reading 70 degrees and holding - exactly 2 degrees warmer than I've ever seen it. Me is very, very happy, and I totally not regret taking the money I spent on those windows and spending it on one of those fancy soapstone stoves. I've got you all to thank for posting that often seen advice in these forums - insulate, insulate, insulate!