How big of an area will the 2-in-1 Heater/Stove heat?

How big of an area will the 2-in-1 Heater/Stove heat?

The 2-in-1 Heater/Stove can heat an area of about 250 square feet in a well-insulated, ventilated space (as with any propane-burning device, do not use the 2-in-1 indoors without adequate ventilation). In an open area without shelter from the wind, the heated area will be smaller.