Answers when you need them When 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 for* Conversion tables, electrical formulas, pipe thread standards, and motor ampere ratings* Fuel cost comparisons* Offset calculations and valve details* Gas and oil burner specifications* Pipe performance data* Weather and design factors affecting heating/cooling calculations* Troubleshooting guidelines
