Rocky Mountain Power's Wattsmart Business program helped RC Willey install engine block heater controllers on their delivery vehicles to help them save energy and money.

Listen to this story: Moffet was in the middle of installing yet another engine block heater at L and M Motors. The process had become almost routine: It was his third one in three days.

Trucks with a 6.7L Cummins engine have a block heater built in, so if you live in an extremely cold climate, you'll want to know where it's located.

She had an engine block heater in her old car. She went to have one installed in the new car, but they advised her to get a car starter instead. I have tried to research this for her, without much ...