To wrap the pipes of a gas water heater, first shut off the gas supply and power to the unit. Use insulated pipe wrap or foamboard cut to fit the pipe circumference. Wrap the insulation snugly around joints, heat risers, and exposed sections, leaving no gaps. Secure with aluminum foil tape or high-temperature adhesive. Ensure the wrap does not touch the water heater’s surface.

This process prevents condensation buildup, which can corrode pipes and cause leaks. Insulation reduces heat loss, improving energy efficiency by 4-22% according to the U.S. Department of Energy. Condensation forms when warm pipes cool in unheated areas, leading to moisture damage. A 2021 study by the American Society of Mechanical Engineers found that insulated pipes in crawl spaces reduced condensation by 65% compared to uninsulated ones. Additionally, proper insulation maintains consistent water temperature, extending heater lifespan. The DOE estimates that insulating hot water pipes can cut annual energy bills by $50-$200, depending on climate and usage. Neglecting insulation risks costly repairs, safety hazards, and inefficient energy consumption.