Quote:
Originally Posted by Kenswing
Our unit came with a recirc pump built in. I wasn't really concerned with savings. I just like having hot water when I turn on the shower.. Especially since our master bath is the farthest point in the system.
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No doubt the reason it had the pump preinstalled is the cold sandwich effect
Solutions To Cold Water Sandwich Effect. Not many people understand this. And it's not really applicable to a standard designer home. Unlike a conventional hot water heater with a tankless you can get, under certain situations, a hot, cold then hot water effect. It's not really a big deal. I would classify this as a first world problem.