Easy DIY · 온수 배관 단열

Insulate accessible hot-water pipes in six steps

Measure accessible hot-water pipes and choose a correctly sized sleeve; leave areas near combustion equipment to professionals.

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US Department of Energy

DOE guidance for insulating hot-water pipes

Link to DOE instructions on choosing pipe insulation

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DOE building-science guidance supports insulation on accessible hot-water piping to reduce heat loss. These steps exclude flues, combustion systems and inaccessible piping.

Your try-it-at-home checklist

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Identify exposed, safely reachable hot-water lines. Do not work near boiler flues, gas burners or energized components.
Stop hot-water use, let pipes cool, then measure pipe outer diameter and accessible run length.
Choose sleeves of the correct inner diameter and appropriate temperature and fire rating; read product instructions.
Fit the insulation snugly along accessible straight pipe runs without forcing pipes or fittings.
Secure seams as instructed, leaving service valves, safety devices and exhaust parts unobstructed.
Recheck for leaks or condensation. Ask a qualified installer to handle enclosed walls or piping near heat sources.

DOE guidance for insulating hot-water pipes

Your try-it-at-home checklist

Further reading

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