Technical Resources

At Century, we pride ourselves on the products we carry, the knowledge we bring and the service we provide. Here in our online Resource Center we provide the tools to make your job easier!

Website Resources

• How To Use Custom Shopping Lists
• How To Create Custom Shopping Lists
• Custom Shopping List Template
• Shopping Cart Upload Template

Charts

• Pressure Temperature Chart
• Orifice Gas Flow Chart
• Diagnostic Chart
• Reference Charts
• Conversion Formulas and Measures Charts

Calculators

• Ohm's Law Calculator
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Ohm's Law Calculator
Enter two known values and press Submit to calculate unknowns.



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• Heat Load Calculator
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Heat Load Calculator

Enter the Dimensions of your the home below

Enter the length in feet

Enter the width in feet

Please choose a situation that best describes the home type.
(Note some home designs are set for multi floor)

Bi-Level Home, stairway open to lower level Bi-Level Home, stairway closed door to lower level Ranch style home with sealed door to basement Colonial home, 2 conditioned floor levels over bsmt, door closed Contemporary Home 2 levels w/some cathedral ceilings Brick Home Single level 20 years old Brick Home Single level new construction Mobile Home

Insulation Values

No Insulation R7 Insulation 2.5 inch thick R11 Insulation 3.5 inch thick R13 Insulation 4.5 inch thick R19 Insulation 6 inch thick Heavly insulated R19 wall R30 ceilings

Estimate the number windows to be cooled

Average amount of windows Less windows than normal Many windows in home

Enter Number Of Skylights

None 1 Skylight 2 Skylights 3 Skylights 4 Skylights

Number of Btu's needed:

Nominal Tons:

CFM's of air needed:

Recommended number of 6" take off ducts:

Helpful Links

• Air-Conditioning, Heating, and Refrigeration Institute (AHRI)
• Air Conditioning Contractors of America (ACCA)
• North American Technician Excellence (NATE)
• epatest.com
• constructiondatainc.com