Originally Posted by IFIXH20
If you have a heat pump with recovery heat there is a good chance the piping could be going to it. Check to see if you have 1/2'' piping outside at the heat pump or maybe a recovery box attach to the house by the heat pump.
Hi, if there is a heat pump it's nowhere to be found unless it's behind the wall. I'm just curious if that line needs to be connected to the new water heater I plan to have installed. What I did for the moment was that I turned off that line using the water valve wheel and really saw no difference in water temperature or pressure. I just don't want that extra line connected to my new water heater if I really don't need it.