one, i’ve been told if you have any solder joints it’s not good for them
two, you have to constantly heat that water let alone a costlier system to get it to work and most places electric isn’t cheap, the tankless cut my elecbill by around well over half
three, i can wait for five or ten seconds for the cold water in the line to be replaced by hot water in the kitchen
four, the heater is two feet from my shower head so there in NO lagtime there, ten-fifteen feet from the sink and washer so no real lagtime there
if you have tankless, do you have a holding tank for the circulation?
I’m not tankless...conventional tank WH. I don’t,understand the issues,with solder joints. Is it because they are held at a higher temperature for many hours?
It’s a trade-off:
Lots of cold water dumped down the drain while waiting for the hot water to arrive...
Vs...
Extra electricity consumed to run the recirculating pump and extra heat loss in the recirculating system (more natural gas consumed).