I recently relocated my water heater within my home. Since I moved it we have very hot water but as soon as you crack the cold water faucet to cool the hot down it almost immediately gets ice cold. It is a brand new water heater that is making very hot water so I know it is not the heater. I'm not sure what is going on. Any help would be greatly appreciated.

first test is to hold the hot pipe as it comes out of the heater. have someone turn on the hot and then the cold. see what happens.

Did you connect a circulation line to the heater?

Whoa, Whoa. Let's begin with the brand and model of your heater. Gas or Electric. Do you use a recirculation pump on the system.

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quote; Let's begin with the brand and model of your heater. Gas or Electric.

What does that have to do with anything, since he stated that the pipes on the heater are HOT?

If the heater is a tankless it can make all the difference.

if it is a dip tube problem the hot will turn cold as he runs something.

No. I didn't change anything, just put it in a new location.

I will do this tonight. If the hot line gets cold, would that mean a cracked dip tube?

It is a 40 gallon Whirlpool electric water heater purchased from Lowe's. Don't have the particular model on hand right now.

Even when "cracked dip tubes" were a factor, I never encountered one, nor any other time, so that would be the very last thing I would consider.

I would find it more likely that the hot and cold got reversed in the move so the dip tube isn't taking the cold to the bottom of the tank than it be cracked. Or somebody made a cross connection while doing the plumbing that wasn't there before.