NEEDING HELP Looking at wood furnaces need advice on models

Thanks for all and any help here is my story i have a two story home (old real old) poor instalation newer windows i live in the middle of nowhere kansas (windy) with no trees for wind brake. Bought home had just had all electric heat in stalled 2 seperate units on up stairs and one down stair (have and unfinished basment) purchased a englander pellet stove last year to help with the 550 dollar electric bill saved about 250 average but am looking for more heat and better distrubution on the cold days. Are there any pro or con to the englander add on furnace