Audel HVAC Pocket Reference
Answers when you need themWhen you need to check specs, confirm measurements, or make a quick metric conversion on the job,  find the answers quickly and easily—right in your pocket.Your one-stop reference forConversion tables, electrical formulas, pipe thread standards, and motor ampere ratingsFuel cost comparisonsOffset calculations and valve detailsGas and oil burner specificationsPipe performance dataWeather and design factors affecting heating/cooling calculationsTroubleshooting guidelines