VALICALC · 4 LOOKUPS
HVAC & Insulation references
Duct geometry, airflow scenarios and named insulation product lookups.
Search by tool, system, or quantity. Use ↑ ↓ and Enter to open a result.
HVAC & Insulation
Duct Velocity Reference
Compare authored duct velocity scenarios at your airflow, view the required area and round diameter, then use the chosen velocity in Duct Size.
Open lookup →HVAC & Insulation
Round Duct CFM Chart
Look up round-duct airflow at an editable mean velocity, compare metric and inch diameters, and continue with a straight-duct loss calculation.
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Rectangular to Round Duct Chart
Compare rectangular duct area, hydraulic diameter and equal-area round diameter. Transfer actual rectangular dimensions to the existing Duct Size tool.
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Insulation R-Value Chart
Compare selected Climate Pro attic R-values, RSI and installed thickness. Use a named product target in the Blown-In Insulation calculation.
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