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# Insulated Copper Tubes - Heat Loss

The heat loss from insulated copper pipes or tubes to surrounding air are indicated below. The heat loss is based on temperature difference 55 oC (99 oF) with insulation thickness 25 mm (1 inch) and conductivity coefficient k = 0.043 W/m oC (0.3 Btu in/ft2 hr oF).

Insulated Copper Tubes - Heat Loss
Nominal boreHeat Loss
(mm)(inches)(W/m)(Btu/hr ft)
22 3/4 8 8
28 1 10 10
42 1 1/2 11.5 12
54 2 14.5 15
67 2 1/2 16 17
76 3 19 20
• 1 W = 3.4 Btu/hr
• 1 ft (foot) = 0.3048 m

## Related Topics

### • Heat Loss and Insulation

Heat loss from pipes, tubes and tanks - with and without insulation - foam, fiberglass, rockwool and more.

### • Insulation

Heat transfer and heat loss from buildings and technical applications - heat transfer coefficients and insulation methods to reduce energy consumption.

### • Piping Systems

Dimensions of pipes and tubes, materials and capacities, pressure drop calculations and charts, insulation and heat loss diagrams.

### • Water Systems

Hot and cold water service systems - design properties, capacities, sizing and more.

## Related Documents

### ASTM B88M - Seamless Copper Water Tubes - Metric Dimensions

Water and gas copper tubes according ASTM B88M - type K, L and M - metric units.

### BS 2871 Copper Tubes Table X, Y and Z - Working Pressures vs. Size

Working pressures of metric sized copper tubes according the BS (British Standard) 2871.

### Copper Tubes - Heat Carrying Capacities

Hot water heat carrying capacities in copper tubes type L.

### Copper Tubes - Heat Losses

Heat loss from uninsulated copper tubes vs. temperature differences between tube and air.

### Insulation Materials - Operating Temperature Limits

Temperature limits for commonly used insulation materials.

### Pipes - Insulated Heat Loss Diagrams

Heat loss (W/m) from 1/2 to 6 inches insulated pipesĀ - ranging insulation thickness 10 to 80 mm and temperature differences 20 to 180 degC.

### Pipes - Insulated Heat Loss Diagrams

Heat loss (W/ft) diagrams for 1/2 to 6 inches insulated pipesĀ - ranging insulation thickness 0.5 to 4 inches and temperature differences 50 to 350 degF.

### Pipes and Cylinders - Conductive Heat Losses

Conductive heat losses through cylinder or pipe walls.

### Steam Tracing Pipe Lines

Steam tracing of pipe lines can be done to maintain appropriate product temperatures.

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