Boilers and furnaces use fuel or electricity to heat a building, but they work differently. Here's what you need to know ...

Replacing the old furnace in your central heating system with a new, more efficient model can offset volatile energy prices. (So far, it’s predicted that fuel costs will go up this winter.) Money ...

I recently had a chance to visit Renewable Silicon International (RSI) to see their new production like for creating low cost silicon for photovoltaic (PV) solar cells. RSI's technology is called ...