(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.
1 A Jenny compressor with a 5 HP, two stage electric motor, 30 gallon horizontal tank, and PSI output of 145-175.  For around $2,500 to $3,000 you can buy a portable air compressor with an 11 HP two-stage gas engine, 30 gallon tank and 145-175 PSI output.