I think it is pretty funny that people think you have to have the fanciest, latest addition, digitally controlled, automatic everything incubator to hatch a half dozen eggs a year. To me that is called a broody hen. My mother remembers her father hatching eggs on the door of the woodstove. As a kid, I remember the neighbors hatching chicks in a box placed behind their wood burning barrel stove. I showed my wife that an incubator could be built out of a large pyrex bowl with a wire basket in it and placed under a heat lamp. And yes we hatched two eggs out of four. Could you actually hatch chicks in a modern stove? Possibly. But like others pointed out, it would tie up your stove for a minimum of 21 days. Our electric stove starts at 125 degrees. Maybe leave the door open part way and place the eggs by the door. Lockdown would not really be possible. But then we run staggered hatches in our store bought bators and so lockdown does not exist in what we do and we still achieve 90 to 95% hatch rates. But then we live in Florida where the humidity is grossly high anyway. I agree that it is an odd way of promoting hatching eggs for sale and I would love to see how she does it just for future reference. But maybe she is like a large part of this nation who can't afford that bright shiney new incubator and has overcome that adversity by figuring out a way to use her stove just as some have figured out how to use a refrigerator, a wine cabinet, a plastic cooler and even a Pyrex bowl. Necessity is the mother of invention.