I have a two story 2500 sqft house built in 1908. Bought a lopi endevor in january. It is centrally located on the 1st floor house and it does put out enough btu's to heat the house. Also, the tolerances on the endevor were appealing, it saved us from having to put up heat protection on the walls. But... Too much ash, have to empty twice a week. Can't keep the house warm if i throttle it down. Squirrel cage fan is noisy, but it does help with heating the house. however it seems when we run the fan at higher speeds the ash build up is more...i think Damper control is super noisy Occasional back draft on windy nights unless we keep the damper opened up more It was installed using the exisiting 8" pipe from a previous wood stove. Dealer sad it should be ok and i wasnt interesred in replacing the entire outside pipe. Not sure if this has a negative impact on the endevor.