Steam pipes and condensate return pipes that are not insulated are a constant source of heat loss which is easy to remedy. Insulating all heat surfaces is, in most cases, an easy measure to implement. In addition, localised damage to insulation can be readily repaired. Insulation might have been removed or not replaced during operation maintenance or repairs. Removable insulation covers for valves or other installations may be absent.
Wet or hardened insulation needs to be replaced. The cause of wet insulation can often be found in leaking pipes or tubes. The leaks should be repaired before the insulation is replaced.

絕熱不良的蒸氣管線與凝結水回流管線經常是熱能損失的源頭之一，可惜的是此部分是可以容易地去修正的。幾乎所有情況下，在所有熱表面體做好絕熱是容易做到的方法，而絕熱材小區塊的破損也很容易修補。絕熱材料在大修或維護保養後很容易被移除或忘記補新。有些情況下閥件或設備上可移動式的絕熱材料也可能被移除而未歸位。
發現絕熱材料潮濕或硬化就要更新。絕熱材料會潮濕的原因經常管線破損，所以在更新前必須先將管線的破損修補完善。

Increased use of insulating materials.

增加絕熱材料的使用。

As a baseline, all piping operating at temperatures above 200 °C and diameters of more than 200 mm should be insulated and good condition of this insulation should be checked on a periodic basis ( e.g. prior to turnarounds via IR scans of piping systems). In a ddition, any surfaces that reach temperatures of higher than 50 ºC where there is a risk of staff contact, should be insulated.

基本上，所有操作溫度超過200°C及管徑200毫米以上之蒸氣管線都必須做絕熱，且必須用紅外線儀器做徹底地定期檢查。
另外，有些管線表面溫度超過50°C也必須加設絕熱材料，以避免操作人員觸碰燙傷。

It can give rapid payback, but time depends on energy price, energy losses and insulation costs.

成本可快速回收，但回收速度要看能源價格、能量損失及絕熱技術的成本而定。

Energy Efficiency (2009) 3.2.11