(Redirected from EFI System partition) The EFI system partition (ESP) is a partition on a data storage device (usually a hard disk drive or solid-state drive) that is used by computers adhering to the Unified Extensible Firmware Interface (UEFI).
As much as 80 to 90% of the electrical energy used by an air compressor is converted to heat. A properly designed heat recovery unit can recover 50 to 90% of this heat for heating air or water.
Question: How much electricity does a ceiling fan use? Ceiling fans are extremely efficient and can cost as little as 2 or 3 cents per hour to operate. Compare this to about 50 cents per hour for central air and you can see there is a lot of money to be saved by using ceiling fans.