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.
I'm confused about the words ECM, variable speed, and multi-stage. If anyone can offer definitions, that would be very helpful. If I buy a furnace that is labeled as having an ECM (according to the AHRI certificate), is it necessarily a variable speed motor? My understanding is no.