When you want to find duct calculator, you may need to consider between many choices. Finding the best duct calculator is not an easy task. In this post, we create a very short list about top 9 the best duct calculator for you. You can check detail product features, product specifications and also our voting for each product. Let’s start with following top 9 duct calculator:
Best duct calculator
1. SuperCool Slide Rule by SuperCool Slide Rule
Feature
#1 Training tool used by Colleges, Universities and Training CentersSuperHeat & SubCooling charging of both R410a and R22
Duct Calculator that calculates CFM of Metal and Flex Duct
Access to approximately 100 free tutorials by scanning the QR code on the tool
Pressure Drop and Sizing for - Rectangular Metal, Round Metal, AND Round Vinyl Flex
Description
This amazing tool performs every function needed by the HVAC professional. Including both SuperHeat and SubCooling of R410a and R22; a Duct Calculator that calculates CFM, Pressure Drop and Sizing for - Rectangular Metal, Round Metal, AND Round Vinyl Flex. It's the only slide rule on the market that has conversion for Smooth Metal to Insulation Lined Metal. It also contains: Testing for Correct System Airflow for A/C & Heating for both electric and gas Pressure Drop Chart Wet Bulb Conversion Chart Troubleshooting Compressors Troubleshooting TXV's (TEV's) System Operating Diagnostics Capacitors - Laws & Practices OHM's Law Wheel and every Formula & Conversion needed2. Air Duct Sizing Calculator
Feature
Air Duct CalculatorEqual Friction Method
Duct Sizing
Description
The Duct Sizing Calculator is a hand held sliding calculator used for sizing supply and return duct systems using the equal friction, or velocity reduction design method. Front of calculator includes scales for friction, velocity, round duct size, weight per linear foot of round duct, surface area in square feet per lineal foot of round duct, rectangular equivalents of round duct sizes, weight per linear foot of rectangular duct and surface area in square feet per linear foot of Rectangular duct. Back of calculator has equivalent feet of straight duct for commonly used fittings, corrected pressure drop chart, and many HVAC formulas. Pull out slide has recommended duct velocities, recommended gauges for sheet metal, and much more. The photo shows front side of the tool. This slide is made of thick durable water resistant paper stock with glued edges and corner rivets. Tool measures 4 inches high and 8.5 inches wide. Picture shows front and back.3. HVAC Chart 3 Pack, R-22 Superheat Subcooling Calculator, R-410a Superheat Subcooling Calculator and Duct Calculator
Feature
3 Slide charts for less that some sellers charge for 1!#1 Training tools used by College, Universities and Training Centers
Field proven by installers and technicians for over 30 years!
No abridged information or rule of thumb calculations.
Duct calculator has diagrams for properly calculating total equivalent length and pressure drop correction factors. A must have for high efficiency systems.
Description
Lets face it, 1 slide chart can not do it all. Don't be fooled by an abridged chart with missing information, tidbits of random formulas and rule of thumb calculations all crammed on to one chart. The HVAC 3-Pack comes with 3 charts. One for sizing ductwork, one for calculating superheat/subcooling on R-22 systems and one for calculating superheat/subcooling on R-410a systems. Duct calculator has diagrams for properly calculating total equivalent length and pressure drop correction factors. A must have for high efficiency systems. Put one chart in your install bag and the others in your service bag.4. Air Duct Calculator / Ductulator with Sleeve
Feature
Complete with both standard and metric calibrationsIncludes Protective Sleeve
Description
Calculating duct dimensions is a cinch with the Ductulator! The Ductulator - Duct Sizing Calculator is a hand held rotating calculator used for sizing supply and return duct systems using the equal friction design method. This accurate, easy-to-use duct size calculator includes scales for friction loss per unit length, air volume, air velocity, round duct diameter and rectangular duct diameters. One side uses English units, the other side uses Metric units. Includes a protective sleeve with ASHRAE recommended design air velocities for system components/applications.5. Trane TD1 Ductulator with Sleeve, Duct Sizing Calculator
Feature
Multi-Color red, green, and blueIncludes a protective sleeve with ASHRAE recommended design air velocities
Classic Ductulator Style
One side English, one side metric
Size ducts using the equal friction method
Description
The Ductulator - Duct Sizing Calculator is a hand held rotating calculator used for sizing supply and return duct systems using the equal friction design method. Includes scales for friction loss per unit length, air volume, air velocity, round duct diameter, and rectangular duct diameters. One side uses English units, the other side uses Metric units. Includes a protective sleeve with ASHRAE recommended design air velocities for system components/applications.6. HVAC Tables, Equations & Rules of Thumb Quick-Card
Description
HVAC Tables, Equations & Rules of Thumb Quick-CardBased on 2015 IMC, ASHRAE & SMACNA
This 6-page guide provides the basic numbers, flow rates and formulas the plumber and mechanics needs based on 2015 International Mechanical Code (IMC), ASHRAE & SMACNA
Features:
- Cooling Load & Factors
- Cooling Towers & Condensers
- Air Conditioning
- Heating Load, Systems & Factors
- Heat Exchangers & Boilers
- Boilers
- Steam Piping Systems & Humidification
- Ventilation, Air Distribution Systems & Ductwork
- Fans
- Energy Efficiency
- Conversions & Occupancy Factors
ISBN 10- 1622701275 ISBN 13- 9781622701278
7. Air Duct Calculator / Ductulator for Metal Duct with Formulas # 22-3126-03
Feature
Double Sided with FormulasCalculates Metal Duct
Based on ASHRAE Fundamentals
Description
The Trane Ductulator is an accurate , easy-to-use calculating device that aids in laying out air-handling systems , sizing ducts and checking duct systems.8. Brown Duct Calculator
Description
The ductulator is an accurate, easy-to-use calculating device that aids in the layout of air handling systems, sizing of ducts and the checking of existing duct systems. With single setting, the answer to any duct sizing problem may be read directly from the face of the Ductulator. conversion of units, English-to-metric, or vice versa, is accomplished by setting up a problem on the scales of one unit system, reversing sides of the Ductulator, and reading the converted values from the scales of the other unit system. Instructions: 1. Set Air Quality (CFM) opposite Velocity (FPM) at top right 2. Read Friction Loss per 100' of Duct opposite Air Quantity (CFM) at top left. 3. Read Duct Diameter (in) at the arrow above 4. Read equivalent Rectangular Duct Dimensions 5. For Metric equivalents, dont move the dial and turn over9. superbobi New Trane Ductulator Duct Sizing Calculator Slide Chart Graph With Sleeve
