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Plumbing education, information, advice, help and suggestions are provided by some of the most experienced plumbers who wish to "give back" to society. Since 1996 we have been the best online (strictly) PLUMBING advice site. If you have questions about plumbing, toilets, sinks, faucets, drains, sewers, water filters, venting, water heating, showers, pumps, and other strictly PLUMBING related issues then you've come to the right place. Please refrain from asking or discussing legal questions, or pricing, or where to purchase products, or any business issues, or for contractor referrals, or any other questions or issues not specifically related to plumbing. Keep all posts positive and absolutely no advertising. Our site is completely free, without ads or pop-ups and we don't tract you. We absolutely do not sell your personal information. We are made possible by:  

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 Why are both pipes attached to my water heater insulated?
Author: Bobrob33 (KY)

I was checking it out earlier and cant figure it out. One pipe, the 'in' side, is cold water, right? So why is it insulated? Also, why is that 'in' pipe warm to touch? Thanks for the advice!

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 Re: Why are both pipes attached to my water heater insulated?
Author: EndangeredSpecies (FL)

You answered your own question in the post, the pipe gets warm. Both water and copper are great conductors of heat and the insulation helps prevent heat loss. Plus it looks better and is code in most places,

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 Re: Why are both pipes attached to my water heater insulated?
Author: Wheelchair (IL)

Insulating the cold supplies prevent dripping from condensation. Insulating the hot supplies, ensure a steady flow of hot waters, without losing heat to the surrounding areas. It also looks better. Don't forget to label the supplies after you insulate.

Best Wishes

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 Re: Why are both pipes attached to my water heater insulated?
Author: hj (AZ)

IF the supplies have to be "labeled" wouldn't they need it whether insulated or not?

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