Care to do the maths?, Take away the gas, leccy and coal.............................

[NorthernRaider]

IIRC there are three basic types of stove, heavy cast iron thick wall ( the top plate is at least an inch thick) Heavy cast iron thin wall (CI under an inch thick and mild steel sheet stoves. The heavy cast iron ones last the longest, retain the heat more and dont suffer AS MUCH from burn though like the others can do, So i was told.