Have only had our propane furnace running once since we lit the first match over a month ago. Stove top is traveling nicely at about 500, secondaries doing their thing. The house is about 74 it is 29 outside. I want to thank the people in here and the guys at ESW for all the help and info that has been shared. Took me awhile to forget all I knew about those old stick the wood in and let it burn stoves from 20 years ago but I am learning.