Looking to upgrade from my dutchwest to a hearthstone. Stuck between a mansfield or Manchester. My primary concern is spring and fall heating. Being able to start a fire after work around 3, heat the house and let it go out by morning. How long does it take most people to get a good amount of heat from a mansfield? Would it be that beneficial to have a Manchester with a listed ability to extract heat faster? Long and consistent heat output is also a priority. I have a 3500 older construction house. Looking to put my propane furnace to rest during the late fall, winter and early spring months.