Question: I have installed my woodstove recently. I have found that It will effectively heat most of the house with a fan set on low blowing over the top of it from behind. I have found that the stovepipe temp drops dramatically when I use the fan this way. <p> Am I going to have more of a problem with creosote buildup with this setup? The stove pipe temp without the fan ran between 250 and 500 degrees. With the fan it runs 100-250 (usually 150-200). To reiterate my question: Will the lesser temperatures of the stovepipe cause increased condensation of creosote? and furthermore will it produce dangerous amounts? Answer: If the inside stack temperatures are really this much lower- and if your stove is an older model- it could lead to increased creosote or condensation. However- since your thermometer is probably a surface type- it may not be measuring your temperature accurately. You can purchase probe thermometers if you want a more accurate idea.