Mark Akkerman kneels over the machine he helped create. It looks like a normal space heater. But if you look inside you'll see it's different. That's all thanks to its unique fuel source.

"We have a heating unit that operates on water," says Akkerman. "It uses water as fuel."

More precisely, the machine separates water into hydrogen and oxygen and then uses the hydrogen as fuel. That concept isn't new. But for some, it's scary. When people think of hydrogen being used as fuel they often think of an infamous airship disaster.

"If I heard the word hydrogen, I thought of nuclear bombs going off and I thought of the Hindenburg disaster," says Akkerman. "Really it is the safest gas you can possibly imagine."

Akkerman and his business partner, Randy Bunn, are sharing how to build these little heaters with the general public. They believe such heat will be the wave of the future.

"Seeing is believing," says Akkerman. "When they see and feel the heat coming off it, they can see this is a concept that's going to be here to stay."