Whew! Lots of wood feeding. I have never regretted building a rocket mass heater in our living room when we vuilt the house 3 years ago. After 3 winters even my wife agrees it is easy to light and usually in northern Missouri winters every other day is enough for our ~1760sqft ICF house. No furnace nor central air, and we use about 1/3 cord of wood per winter. Maybe less unless it is a relatively rough one. At $10/bundle(about 1/3 cord) from a local Amish sawmill that os our primary heating. We do have a wall propane heater, and cook and heat water with propane and need to fill our 500 gallon tank about every 10-11 months so it doean't go below 20% or over 70/80%.
Even when the temps are single digits or below zero for several days, we may just have a fire 1-2 times per day as folks desire. We have never used over 1/3 cord a year.