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Air Duct Calculator - Slide Rule

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was $9.95 Special Price $8.95

Availability:

In stock

Product Code

9781622709823

Details

The Air Duct Calculator – Slide Rule is a compact, jobsite-ready tool designed to simplify HVAC duct sizing and layout calculations. Built for speed and accuracy, this durable reference combines essential formulas, charts, and conversion scales into one easy-to-use calculator.

Engineered for HVAC professionals, technicians, and students, this calculator helps you quickly determine duct sizes, friction loss, velocity, and equivalent lengths without flipping through manuals or relying on digital tools.

This Air Duct Calculator covers:

Equal-Friction
Velocity-Reduction
Round Duct Surface Area
Round Duct Diameter
Rectangular Duct Surface Area
Width Plus Depth
Commonly Used Fittings
Round Trunk Duct Fittings
Angles and Elbows for Trunk Ducts
Angles and Elbows for Individual and Branch Ducts
Boot Fittings
Formulas for Cooling, Heating, and Humidifying
Corrected Pressure Drop (Friction) Per 100 ft. Duct Length
Basic Air Conditioning Formulas
Basic Fan Laws
and More!

Size: 4" x 8.5".

ISBN No. 9781622709823

Sturdy construction of heavyweight calculator board with 6 metal eyelets.

More Information

More Information
Price	$9.95
Customer Service	Customer Service We're Here To Help Call us anytime during our customer service hours... Monday through Friday - 8:30 am to 4:30 pm (Pacific) Saturday - 10am to 4pm (Pacific) Order Questions: TOLL FREE, 800-273-7375 (Outside the U.S. call 818-887-7828). Our Address: 8001 Canoga Avenue Canoga Park, CA 91304 US Phone: 800-275-2665 E-mail: sales@buildersbook.com Fax Your Order 818-887-7990 Print Our Fax Order Form
Description	The Air Duct Calculator – Slide Rule is a compact, jobsite-ready tool designed to simplify HVAC duct sizing and layout calculations. Built for speed and accuracy, this durable reference combines essential formulas, charts, and conversion scales into one easy-to-use calculator. Engineered for HVAC professionals, technicians, and students, this calculator helps you quickly determine duct sizes, friction loss, velocity, and equivalent lengths without flipping through manuals or relying on digital tools. This Air Duct Calculator covers: Equal-Friction Velocity-Reduction Round Duct Surface Area Round Duct Diameter Rectangular Duct Surface Area Width Plus Depth Commonly Used Fittings Round Trunk Duct Fittings Angles and Elbows for Trunk Ducts Angles and Elbows for Individual and Branch Ducts Boot Fittings Formulas for Cooling, Heating, and Humidifying Corrected Pressure Drop (Friction) Per 100 ft. Duct Length Basic Air Conditioning Formulas Basic Fan Laws and More! Size: 4" x 8.5". ISBN No. 9781622709823 Sturdy construction of heavyweight calculator board with 6 metal eyelets.