hi all, i'm looking for advice on space heaters.i have a wood insert(quad4100) burn 24/7 in the winter but where i live it gets down to 0 degrees sometimes. in the past i just kicked on the oil furnace to give the upstairs a kick. but this year i dont want to buy oil so i figured i could use a few space heaters upstairs to level off the temp. the stove works well and keeps the whole house warm(2 story colonial)but needs help on those very cold days.just looking for anyone who owns a space heater and uses it for suplimental heat to give me some reviews as to how theres works. thanks to all this forum has helped me in the past so i hope it will again. oh btw not looking for one to heat the whole upstairs, dont think that exists, but if it does please chime in. looking to purchase several to put in the rooms and maybe the hallway. thanks again. tom