He is brainy but a scaredy cat as he says in the books. He has several friends and has a sister name Thea ,two cousins named Trap and Dino ,a nephew named Benjamin ,a granfather named William and more. He likes Cheesy Chews. He is the main character of the series. He is also a secret agent.
High Efficient Furnace Blower Motors. Utilizing ECM Technology. ECM (electronic commutated motor) is a brushless DC motor with a permanent magnet rotor and a built in inverter. DC motors are more efficient than AC motors. They are also more expensive.
An ECM motor is some times referred to an a variable speed motor. In one sense, this is true, it does vary its RPM of the motor, but only in response to changing conditions in the system. But in the truest sense, all it trying to do is maintain a programmed CFM.