slodog
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Another dumb question. I am installing a tankless electric water heater. The old tank unit ( in a kitchen cabinet) has a 3/4 inlet but 1/2 copper pipe for the outlet line. I get plenty of hot water and great pressure with this set-up but my water lines are in concrete and I can only get access to 1/2 inch copper hot and cold pipes (clothes washer pipes) for the new tankless heater. My entire hot water run will be less than 10 feet. (very small house). will 1/2 inch copper pipe for the inlet and outlet be large enough or will I lose too much pressure? This is a Bosch Powerstar AE115 and Bosch support will not give a straight answer. All they say is check local codes. Can anyone help?
Tony
Tony