Duct Insulation Calculator

Input Parameters

Imperial (°F, BTU, ft)SI (°C, kW, m)

Duct Area (sq ft)

Duct Length (ft)

Air Temperature (°F)

Ambient Temperature (°F)

Insulation Thickness (in)

70,000

Heat Loss BTU/hr

Heat Loss per Area BTU/hr/sq ft

73,584

Annual Cost $

Heat Loss70,000 BTU/hr(100%)

Annual Cost73,584 $/year(73584%)

Formula:

Q = U \times A \times \Delta T

Calculation:

Q = 0.2 \times 10000.00 \times 35

Result:

70000.00 \text{ BTU/hr}