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
James Brumbaugh (Winchester, VA) is an active HVAC consultant with more than twenty years experience in residential and light commercial construction. James has authored 15 books on HVAC, construction, and the trades.
Conversion Tables. Basic Electricity. Heating Fuels. Piping and Pipefitting. Gas Piping. Gas Burners. Dual Fuel/Conversion Gas Burner Specifications. Residential and Light-Commercial Oil Burner Specifications. Burner Nozzles. Oil Storage Tanks. Fuel Pumps. Chimneys and Fireplaces. Steam Heating Systems. Hydronic (Hot-Water) Heating Systems. Cast-Iron Radiators. Radiator and Convector Details. Properties of Water, Air, and Saturated Steam. Pipe Performance Data. Copper Tube. PEX Plastic Tubing. Ducts and Duct Systems. Thermostats. Humidifiers and Dehumidifiers. Compressors and Condensers. Refrigerants. Ventilation and Exhaust Fans. Electric Motors. Insulation. Weather Data, Design Conditions, and Related Factors Used in Heating and Cooling Load Calculations.